{"title":"Valvetronic","description":"","products":[{"product_id":"2022-2025-bmw-g87-m2-3-0l-axleback-grade-5-titanium-titanium-4-0-inch-outlet-tips-valvetronic-designs","title":"2022-2025 BMW G87, M2 3.0L Axleback Grade 5 Titanium Titanium 4.0 Inch Outlet Tips Valvetronic Designs","description":"\u003cp\u003eThe littlest M car just got a big upgrade. The Valvetronic Designs G87 M2 Valved Sport Exhaust transforms the factory-muted tone into a rich, aggressive soundtrack worthy of BMW's newest M platform. Drawing from our proven G80 M3 equal length midpipe technology, this system delivers exceptional volume, improved tone, and a more engaging driving experience-tailored to the unique fitment needs of the G87's shorter wheelbase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrade 5 Titanium\u003c\/li\u003e\n\u003cli\u003eFully mandrel-bent for optimal flow with 3.5-inch midpipe for improved tone and volume\u003c\/li\u003e\n\u003cli\u003eElectronic exhaust valves with included remote control\u003c\/li\u003e\n\u003cli\u003e55.8 lbs lighter than stock\u003c\/li\u003e\n\u003cli\u003ePaired with Burnt Titanium Valvetronic Designs Tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eValved titanium axleback exhaust system\u003c\/li\u003e\n\u003cli\u003eValve controller kit included\u003c\/li\u003e\n\u003cli\u003eValvetronic titanium burnt tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect Bolt on installation; axle-back replacement to OEM mounting points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures and Components\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEqual Length Midpipe: 3.5-inch free-flow design smooths tone, eliminates unwanted rasp, and enhances exhaust scavenging\u003c\/li\u003e\n\u003cli\u003eValves Open: Unrestricted, aggressive tone with powerful overrun and a high-RPM scream\u003c\/li\u003e\n\u003cli\u003eValves Closed: Refined, stock-like volume for comfortable commuting and early morning starts\u003c\/li\u003e\n\u003cli\u003eElectronic Valve Control: Integrated remote for rapid open\/close functionality, with optional OEM valve integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2022-2025 BMW M2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691658272966,"sku":"BMW.G87.M2.AXL.TI.TIBRT-JZYF","price":2799.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/BMW.G87.M2.AXL.TI.TIBRT-JZYF.jpg?v=1775480636"},{"product_id":"2022-2025-bmw-g80-g82-m3-m4-3-0l-axleback-grade-5-titanium-titanium-4-0-inch-outlet-tips-valvetronic-designs","title":"BMW G82\/G83 M4 3.0L Axleback Grade 5 Titanium Titanium 4.0 Inch Outlet Tips Valvetronic Designs","description":"\u003cp\u003eThe G82\/G83 is a phenomenal M car-its soundtrack just needs to catch up. Our single 3.5 Inch equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. 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If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691658305734,"sku":"BMW.G8X.M3.AXL.TI.TIBRT-JZYF","price":2799.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/BMW.G87.M2.AXL.TI.TIBRT-JZYF.jpg?v=1775480636"},{"product_id":"valvetronic-designs-titanium-axleback-bmw-g80-g81-m3","title":"BMW G80\/G81 M3 3.0L Axleback Grade 5 Titanium Titanium 4.0 Inch Outlet Tips Valvetronic Designs","description":"\u003cp\u003eThe G80\/G81 is a phenomenal M car-its soundtrack just needs to catch up. Our single 3.5 Inch equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. 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If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691666956486,"sku":"BMW.G8X.M3.AXL.TI.TIBRT-JZYF","price":2799.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/BMW.G87.M2.AXL.TI.TIBRT-JZYF.jpg?v=1775480636"},{"product_id":"400-cell-catted-downpipes-for-bmw-g80-g81-m3","title":"400-cell catted downpipes for BMW G80\/G81 M3","description":"\u003ch1\u003e\u003cstrong\u003eBMW G8X M2 \/ M3 \/ M4 – EPA-Compliant 400 Cell Catted Downpipes\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eEngineered for the S58 Twin-Turbo Inline-6 • High-Flow • Compliant • \u003c\/h3\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for the G8X Platform\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe BMW G8X M2, M3 and M4 represent the next evolution of M performance, powered by the highly capable S58 twin-turbo inline-6. While factory catalysts prioritize restriction and sound suppression, our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare engineered to reduce exhaust backpressure, enhance turbo efficiency, and unlock a sharper, more aggressive exhaust character — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp\u003eThis upgrade maximizes the performance potential of the S58 platform without compromising drivability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to 400 Cell?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA-Compliant 400 Cell High-Flow Catalysts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncreased exhaust flow while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Turbo Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduced restriction enhances spool speed and mid-range power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Exhaust Character:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeeper tone with more defined turbo acoustics and sharper high-RPM presence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet \u0026amp; Track Ready:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable gains while maintaining everyday usability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003ePerformance \u0026amp; Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMinimizes backpressure while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSmooth internal transitions for consistent exhaust velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG Welding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt to withstand extreme exhaust temperatures and high boost levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered to Pair Seamlessly with Valvetronic Exhaust Systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSound Transformation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable increase in depth and turbo presence with improved exhaust clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValvetronic Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum transformation — stronger crackles, enhanced turbo spool acoustics, and a more aggressive overall signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eConstruction \u0026amp; Durability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high boost and tuning conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eUnleash the full potential of your S58-powered G8X — starting at the source.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691674558662,"sku":"BMW.G8X.M2.M3.M4.FF.400C.BR-JZYF","price":2249.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/BMW.G8X.M2.M3.M4.FF.400C.BR-JZYF.png?v=1775482961"},{"product_id":"400-cell-catted-downpipes-for-bmw-g82-g83-m4","title":"400-cell catted downpipes for BMW G82\/G83 M4","description":"\u003ch1\u003e\u003cstrong\u003eBMW G8X M2 \/ M3 \/ M4 – EPA-Compliant 400 Cell Catted Downpipes\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eEngineered for the S58 Twin-Turbo Inline-6 • High-Flow • Compliant • \u003c\/h3\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for the G8X Platform\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe BMW G8X M2, M3 and M4 represent the next evolution of M performance, powered by the highly capable S58 twin-turbo inline-6. While factory catalysts prioritize restriction and sound suppression, our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare engineered to reduce exhaust backpressure, enhance turbo efficiency, and unlock a sharper, more aggressive exhaust character — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp\u003eThis upgrade maximizes the performance potential of the S58 platform without compromising drivability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to 400 Cell?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA-Compliant 400 Cell High-Flow Catalysts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncreased exhaust flow while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Turbo Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduced restriction enhances spool speed and mid-range power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Exhaust Character:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeeper tone with more defined turbo acoustics and sharper high-RPM presence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet \u0026amp; Track Ready:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable gains while maintaining everyday usability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003ePerformance \u0026amp; Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMinimizes backpressure while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSmooth internal transitions for consistent exhaust velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG Welding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt to withstand extreme exhaust temperatures and high boost levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered to Pair Seamlessly with Valvetronic Exhaust Systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSound Transformation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable increase in depth and turbo presence with improved exhaust clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValvetronic Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum transformation — stronger crackles, enhanced turbo spool acoustics, and a more aggressive overall signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eConstruction \u0026amp; Durability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high boost and tuning conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eUnleash the full potential of your S58-powered G8X — starting at the source.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. 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While factory catalysts prioritize restriction and sound suppression, our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare engineered to reduce exhaust backpressure, enhance turbo efficiency, and unlock a sharper, more aggressive exhaust character — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp\u003eThis upgrade maximizes the performance potential of the S58 platform without compromising drivability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to 400 Cell?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA-Compliant 400 Cell High-Flow Catalysts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncreased exhaust flow while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Turbo Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduced restriction enhances spool speed and mid-range power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Exhaust Character:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeeper tone with more defined turbo acoustics and sharper high-RPM presence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet \u0026amp; Track Ready:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable gains while maintaining everyday usability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003ePerformance \u0026amp; Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMinimizes backpressure while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSmooth internal transitions for consistent exhaust velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG Welding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt to withstand extreme exhaust temperatures and high boost levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered to Pair Seamlessly with Valvetronic Exhaust Systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSound Transformation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable increase in depth and turbo presence with improved exhaust clarity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValvetronic Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum transformation — stronger crackles, enhanced turbo spool acoustics, and a more aggressive overall signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eConstruction \u0026amp; Durability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high boost and tuning conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eUnleash the full potential of your S58-powered G8X — starting at the source.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691680882886,"sku":"BMW.G8X.M2.M3.M4.FF.400C.BR-JZYF","price":2249.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/BMW.G8X.M2.M3.M4.FF.400C.BR-JZYF.png?v=1775482961"},{"product_id":"400-cell-catted-downpipes-for-bmw-g87-m2-copy","title":"BMW G87 M2 Extended Chassis Brace","description":"\u003ch1\u003e\n\u003cstrong\u003eBMW G8X M2 \/ M3 \/ M4 – Extended Chassis Brace\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cp\u003eNeed a new chassis brace for your larger G87 exhaust system? Order this!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*FITMENT*\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW G87 M2 ONLY!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691684946118,"sku":"BMW.G87.CHAS.BRACE","price":229.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_71be0a87-1bc4-4119-a742-c784a436a62b.webp?v=1775484169"},{"product_id":"bmw-g87-extended-chassis-brace-copy","title":"BMW G80\/G81 M3 Extended Chassis Brace","description":"\u003ch1\u003e\n\u003cstrong\u003eBMW G8X M2 \/ M3 \/ M4 – Extended Chassis Brace\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cp\u003eNeed a new chassis brace for your larger G80 exhaust system? Order here!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*FITMENT*\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eG80\u003c\/p\u003e\n\u003cp\u003eG81\u003c\/p\u003e\n\u003cp\u003eG82\u003c\/p\u003e\n\u003cp\u003eG83\u003c\/p\u003e\n\u003cp\u003eDOES NOT FIT G87\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691688190150,"sku":"BMW.G8X.CHAS.BRACE","price":229.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_71be0a87-1bc4-4119-a742-c784a436a62b.webp?v=1775484169"},{"product_id":"bmw-g80-g81-extended-chassis-brace-copy","title":"BMW G82\/G83 M4 Extended Chassis Brace","description":"\u003ch1\u003e\n\u003cstrong\u003eBMW G8X M2 \/ M3 \/ M4 – Extended Chassis Brace\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cp\u003eNeed a new chassis brace for your larger G80 exhaust system? Order here!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*FITMENT*\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eG80\u003c\/p\u003e\n\u003cp\u003eG81\u003c\/p\u003e\n\u003cp\u003eG82\u003c\/p\u003e\n\u003cp\u003eG83\u003c\/p\u003e\n\u003cp\u003eDOES NOT FIT G87\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45691689074886,"sku":"BMW.G8X.CHAS.BRACE","price":149.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_71be0a87-1bc4-4119-a742-c784a436a62b.webp?v=1775484169"},{"product_id":"bmw-g80-g81-m3-3-0l-axleback-grade-5-titanium-titanium-4-0-inch-outlet-tips-valvetronic-designs-copy","title":"BMW G8x M3\/M4 Valved Sport Exhaust System","description":"\u003ch1 data-end=\"228\" data-start=\"186\"\u003eBMW G80 M3 \/ G82–G83 M4 Exhaust System\u003c\/h1\u003e\n\u003ch3 data-end=\"331\" data-start=\"229\"\u003eSingle 3.5\" Equal-Length Mid-Pipe + Optional Valved Axle-Back (T304 Stainless or Grade 5 Titanium)\u003c\/h3\u003e\n\u003ch2 data-end=\"344\" data-start=\"333\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"630\" data-start=\"345\"\u003eThe G80\/G82\/G83 is a phenomenal M car—its soundtrack just needs to catch up. 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Add the Valvetronic Designs valved axle-back for even more presence and control.\u003c\/p\u003e\n\u003cp data-end=\"834\" data-start=\"632\"\u003eCompatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights.\u003c\/p\u003e\n\u003ch3\u003eSound With Free Flow Downpipes:\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/iVr7FWzcfMY?si=AocjShLv4eOoJy01\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eSound With Stock Downpipes:\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/fbwp5_JUkDc?si=H6xBh3YBz3La4VZG\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"851\" data-start=\"836\"\u003eWhy It Works\u003c\/h2\u003e\n\u003cul data-end=\"1165\" data-start=\"852\"\u003e\n\u003cli data-end=\"941\" data-start=\"852\"\u003e\n\u003cp data-end=\"941\" data-start=\"854\"\u003e\u003cstrong data-end=\"878\" data-start=\"854\"\u003eEqual-length design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBalances exhaust pulses for a smoother, higher-frequency tone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1045\" data-start=\"942\"\u003e\n\u003cp data-end=\"1045\" data-start=\"944\"\u003e\u003cstrong data-end=\"972\" data-start=\"944\"\u003eSingle 3.5\" mid-section:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized flow for improved response and power throughout the rev range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1165\" data-start=\"1046\"\u003e\n\u003cp data-end=\"1165\" data-start=\"1048\"\u003e\u003cstrong data-end=\"1070\" data-start=\"1048\"\u003eModular by design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0BAqgzQg3Rc?si=y52zvnUqAE_G3dvW\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1185\" data-start=\"1167\"\u003eSound \u0026amp; Control\u003c\/h2\u003e\n\u003cul data-end=\"1522\" data-start=\"1186\"\u003e\n\u003cli data-end=\"1267\" data-start=\"1186\"\u003e\n\u003cp data-end=\"1267\" data-start=\"1188\"\u003e\u003cstrong data-end=\"1213\" data-start=\"1188\"\u003eWith stock downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeably crisper, more engaging tone without drone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1459\" data-start=\"1268\"\u003e\n\u003cp data-end=\"1459\" data-start=\"1270\"\u003e\u003cstrong data-end=\"1311\" data-start=\"1270\"\u003eWith our valved axle-back (optional):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eQuad-chamber muffler and OEM-style valves deliver daily-driver civility closed, and an aggressive, motorsport edge opened—at the touch of a button.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1522\" data-start=\"1460\"\u003e\n\u003cp data-end=\"1522\" data-start=\"1462\"\u003e\u003cstrong data-end=\"1473\" data-start=\"1462\"\u003eNo CEL:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSystem is designed to avoid check-engine lights.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1549\" data-start=\"1524\"\u003eConstruction \u0026amp; Options\u003c\/h2\u003e\n\u003cul data-end=\"1874\" data-start=\"1550\"\u003e\n\u003cli data-end=\"1626\" data-start=\"1550\"\u003e\n\u003cp data-end=\"1626\" data-start=\"1552\"\u003e\u003cstrong data-end=\"1566\" data-start=\"1552\"\u003eMaterials:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1594\" data-start=\"1588\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eultra-light Grade 5 titanium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1719\" data-start=\"1627\"\u003e\n\u003cp data-end=\"1719\" data-start=\"1629\"\u003e\u003cstrong data-end=\"1648\" data-start=\"1629\"\u003eWeight savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUp to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1678\" data-start=\"1655\"\u003e–57.8 lb (Titanium)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1706\" data-start=\"1682\"\u003e–24.7 lb (Stainless)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evs. factory.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1827\" data-start=\"1720\"\u003e\n\u003cp data-end=\"1827\" data-start=\"1722\"\u003e\u003cstrong data-end=\"1740\" data-start=\"1722\"\u003eCraftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePrecision TIG welds, fully mandrel-bent tubing, and included cross brace for rigidity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1874\" data-start=\"1828\"\u003e\n\u003cp data-end=\"1874\" data-start=\"1830\"\u003e\u003cstrong data-end=\"1839\" data-start=\"1830\"\u003eTips:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePremium double-wall or single wall tips included.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1900\" data-start=\"1876\"\u003eValve Integration\u003c\/h2\u003e\n\u003cul data-end=\"2056\" data-start=\"1901\"\u003e\n\u003cli data-end=\"1978\" data-start=\"1901\"\u003e\n\u003cp data-end=\"1978\" data-start=\"1903\"\u003e\u003cstrong data-end=\"1931\" data-start=\"1903\"\u003eElectronic valve control\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith included controller for rapid open\/close.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2056\" data-start=\"1979\"\u003e\n\u003cp data-end=\"2056\" data-start=\"1981\"\u003e\u003cstrong data-end=\"2010\" data-start=\"1981\"\u003eOEM integration available\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif you prefer factory valve control behavior.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8iplxn-iifM?si=XzSoHGjHWO0D1HWE\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2068\" data-start=\"2058\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-end=\"2163\" data-start=\"2069\"\u003e\n\u003cli data-end=\"2093\" data-start=\"2069\"\u003e\n\u003cp data-end=\"2093\" data-start=\"2071\"\u003e\u003cstrong data-end=\"2091\" data-start=\"2071\"\u003e2020+ BMW G80 M3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2126\" data-start=\"2094\"\u003e\n\u003cp data-end=\"2126\" data-start=\"2096\"\u003e\u003cstrong data-end=\"2124\" data-start=\"2096\"\u003e2020+ BMW G82 M4 (Coupe)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2163\" data-start=\"2127\"\u003e\n\u003cp data-end=\"2163\" data-start=\"2129\"\u003e\u003cstrong data-end=\"2163\" data-start=\"2129\"\u003e2020+ BMW G83 M4 (Convertible)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2186\" data-start=\"2165\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul data-end=\"2509\" data-start=\"2187\"\u003e\n\u003cli data-end=\"2245\" data-start=\"2187\"\u003e\n\u003cp data-end=\"2245\" data-start=\"2189\"\u003eMid-pipe and axle-back can be installed independently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2388\" data-start=\"2246\"\u003e\n\u003cp data-end=\"2388\" data-start=\"2248\"\u003eWhen installing only a mid-pipe or axle-back,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2344\" data-start=\"2294\"\u003emake the rear-section cut at the second dimple\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the OEM pipe to ensure proper fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2441\" data-start=\"2389\"\u003e\n\u003cp data-end=\"2441\" data-start=\"2391\"\u003e100%\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2410\" data-start=\"2396\"\u003ereversible\u003c\/strong\u003e—return to stock at any time.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2441\" data-start=\"2389\"\u003e\u003ca title=\"G8x Install Guide\" href=\"https:\/\/youtu.be\/0wpjSUXVG2Y\" target=\"_blank\"\u003e\u003cstrong\u003eCLICK HERE FOR INSTALL GUIDE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2547\" data-start=\"2511\"\u003eCompatibility Notice (V3 Systems)\u003c\/h2\u003e\n\u003cul data-end=\"2762\" data-start=\"2548\"\u003e\n\u003cli data-end=\"2600\" data-start=\"2548\"\u003e\n\u003cp data-end=\"2600\" data-start=\"2550\"\u003e\u003cstrong data-end=\"2598\" data-start=\"2550\"\u003eV1\/V2 components are not compatible with V3.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2762\" data-start=\"2601\"\u003e\n\u003cp data-end=\"2762\" data-start=\"2603\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2622\" data-start=\"2607\"\u003eV3 mid-pipe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincludes additional clearances at the downpipe connection and mid-section; small visible gaps prior to tightening are normal and by design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2782\" data-start=\"2764\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul data-end=\"2923\" data-start=\"2783\"\u003e\n\u003cli data-end=\"2829\" data-start=\"2783\"\u003e\n\u003cp data-end=\"2829\" data-start=\"2785\"\u003eSingle 3.5\" equal-length mid-pipe assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2845\" data-start=\"2830\"\u003e\n\u003cp data-end=\"2845\" data-start=\"2832\"\u003eCross brace\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2901\" data-start=\"2846\"\u003e\n\u003cp data-end=\"2901\" data-start=\"2848\"\u003eOptional: Valved axle-back with controller and tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2923\" data-start=\"2902\"\u003e\n\u003cp data-end=\"2923\" data-start=\"2904\"\u003eHardware and clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2942\" data-start=\"2925\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-end=\"3185\" data-start=\"2943\"\u003e\n\u003cli data-end=\"2994\" data-start=\"2943\"\u003e\n\u003cp data-end=\"2994\" data-start=\"2945\"\u003eTubing diameter: 3.5\" mid-pipe; 2.75\" axle-back\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3054\" data-start=\"2995\"\u003e\n\u003cp data-end=\"3054\" data-start=\"2997\"\u003eMaterials: T304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"3035\" data-start=\"3029\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGrade 5 titanium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3112\" data-start=\"3055\"\u003e\n\u003cp data-end=\"3112\" data-start=\"3057\"\u003eFinish: Brushed (Stainless) or raw\/brushed (Titanium)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3185\" data-start=\"3113\"\u003e\n\u003cp data-end=\"3185\" data-start=\"3115\"\u003eValves: Electronic, with remote controller (OEM integration available)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Brushed Steel (3.5 outlet)","offer_id":45696360612038,"sku":null,"price":3999.0,"currency_code":"AUD","in_stock":true},{"title":"Burnt (3.5 Outlet)","offer_id":45696360644806,"sku":null,"price":3999.0,"currency_code":"AUD","in_stock":true},{"title":"Black (3.5 Outlet)","offer_id":45696360677574,"sku":null,"price":3999.0,"currency_code":"AUD","in_stock":true},{"title":"Forget Carbon (4.0 Outlet)","offer_id":45696360710342,"sku":null,"price":3999.0,"currency_code":"AUD","in_stock":true},{"title":"Carbon Fibre (4.0 Outlet)","offer_id":45696360743110,"sku":null,"price":3999.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/A7400202_845b0013-2b81-455e-ae21-c0948750c3e9.webp?v=1775610567"},{"product_id":"bmw-g8x-m3-m4-valved-sport-exhaust-system-copy","title":"BMW G8x M3\/M4 Equal Length Midpipe","description":"\u003ch1 data-end=\"228\" data-start=\"186\"\u003eBMW G80 M3 \/ G82–G83 M4 Exhaust System\u003c\/h1\u003e\n\u003ch3 data-end=\"331\" data-start=\"229\"\u003eSingle 3.5\" Equal-Length Mid-Pipe\u003c\/h3\u003e\n\u003ch2 data-end=\"344\" data-start=\"333\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-end=\"630\" data-start=\"345\"\u003eThe G80\/G82\/G83 is a phenomenal M car—its soundtrack just needs to catch up. Our single 3.5\" equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. Add the Valvetronic Designs valved axle-back for even more presence and control.\u003c\/p\u003e\n\u003cp data-end=\"834\" data-start=\"632\"\u003eCompatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights.\u003c\/p\u003e\n\u003ch3\u003eSound With Free Flow Downpipes:\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/iVr7FWzcfMY?si=AocjShLv4eOoJy01\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eSound With Stock Downpipes:\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/fbwp5_JUkDc?si=H6xBh3YBz3La4VZG\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"851\" data-start=\"836\"\u003eWhy It Works\u003c\/h2\u003e\n\u003cul data-end=\"1165\" data-start=\"852\"\u003e\n\u003cli data-end=\"941\" data-start=\"852\"\u003e\n\u003cp data-end=\"941\" data-start=\"854\"\u003e\u003cstrong data-end=\"878\" data-start=\"854\"\u003eEqual-length design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBalances exhaust pulses for a smoother, higher-frequency tone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1045\" data-start=\"942\"\u003e\n\u003cp data-end=\"1045\" data-start=\"944\"\u003e\u003cstrong data-end=\"972\" data-start=\"944\"\u003eSingle 3.5\" mid-section:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized flow for improved response and power throughout the rev range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1165\" data-start=\"1046\"\u003e\n\u003cp data-end=\"1165\" data-start=\"1048\"\u003e\u003cstrong data-end=\"1070\" data-start=\"1048\"\u003eModular by design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePairs with OEM or aftermarket rear sections; upgrade path to our valved axle-back at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/0BAqgzQg3Rc?si=y52zvnUqAE_G3dvW\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1185\" data-start=\"1167\"\u003eSound \u0026amp; Control\u003c\/h2\u003e\n\u003cul data-end=\"1522\" data-start=\"1186\"\u003e\n\u003cli data-end=\"1267\" data-start=\"1186\"\u003e\n\u003cp data-end=\"1267\" data-start=\"1188\"\u003e\u003cstrong data-end=\"1213\" data-start=\"1188\"\u003eWith stock downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeably crisper, more engaging tone without drone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1459\" data-start=\"1268\"\u003e\n\u003cp data-end=\"1459\" data-start=\"1270\"\u003e\u003cstrong data-end=\"1311\" data-start=\"1270\"\u003eWith our valved axle-back (optional):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eQuad-chamber muffler and OEM-style valves deliver daily-driver civility closed, and an aggressive, motorsport edge opened—at the touch of a button.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1522\" data-start=\"1460\"\u003e\n\u003cp data-end=\"1522\" data-start=\"1462\"\u003e\u003cstrong data-end=\"1473\" data-start=\"1462\"\u003eNo CEL:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSystem is designed to avoid check-engine lights.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1549\" data-start=\"1524\"\u003eConstruction \u0026amp; Options\u003c\/h2\u003e\n\u003cul data-end=\"1874\" data-start=\"1550\"\u003e\n\u003cli data-end=\"1626\" data-start=\"1550\"\u003e\n\u003cp data-end=\"1626\" data-start=\"1552\"\u003e\u003cstrong data-end=\"1566\" data-start=\"1552\"\u003eMaterials:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1594\" data-start=\"1588\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eultra-light Grade 5 titanium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1719\" data-start=\"1627\"\u003e\n\u003cp data-end=\"1719\" data-start=\"1629\"\u003e\u003cstrong data-end=\"1648\" data-start=\"1629\"\u003eWeight savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUp to\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1678\" data-start=\"1655\"\u003e–57.8 lb (Titanium)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1706\" data-start=\"1682\"\u003e–24.7 lb (Stainless)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evs. factory.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1827\" data-start=\"1720\"\u003e\n\u003cp data-end=\"1827\" data-start=\"1722\"\u003e\u003cstrong data-end=\"1740\" data-start=\"1722\"\u003eCraftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePrecision TIG welds, fully mandrel-bent tubing, and included cross brace for rigidity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1874\" data-start=\"1828\"\u003e\n\u003cp data-end=\"1874\" data-start=\"1830\"\u003e\u003cstrong data-end=\"1839\" data-start=\"1830\"\u003eTips:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePremium double-wall or single wall tips included.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1900\" data-start=\"1876\"\u003eValve Integration\u003c\/h2\u003e\n\u003cul data-end=\"2056\" data-start=\"1901\"\u003e\n\u003cli data-end=\"1978\" data-start=\"1901\"\u003e\n\u003cp data-end=\"1978\" data-start=\"1903\"\u003e\u003cstrong data-end=\"1931\" data-start=\"1903\"\u003eElectronic valve control\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith included controller for rapid open\/close.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2056\" data-start=\"1979\"\u003e\n\u003cp data-end=\"2056\" data-start=\"1981\"\u003e\u003cstrong data-end=\"2010\" data-start=\"1981\"\u003eOEM integration available\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eif you prefer factory valve control behavior.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/8iplxn-iifM?si=XzSoHGjHWO0D1HWE\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2068\" data-start=\"2058\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-end=\"2163\" data-start=\"2069\"\u003e\n\u003cli data-end=\"2093\" data-start=\"2069\"\u003e\n\u003cp data-end=\"2093\" data-start=\"2071\"\u003e\u003cstrong data-end=\"2091\" data-start=\"2071\"\u003e2020+ BMW G80 M3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2126\" data-start=\"2094\"\u003e\n\u003cp data-end=\"2126\" data-start=\"2096\"\u003e\u003cstrong data-end=\"2124\" data-start=\"2096\"\u003e2020+ BMW G82 M4 (Coupe)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2163\" data-start=\"2127\"\u003e\n\u003cp data-end=\"2163\" data-start=\"2129\"\u003e\u003cstrong data-end=\"2163\" data-start=\"2129\"\u003e2020+ BMW G83 M4 (Convertible)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2186\" data-start=\"2165\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul data-end=\"2509\" data-start=\"2187\"\u003e\n\u003cli data-end=\"2245\" data-start=\"2187\"\u003e\n\u003cp data-end=\"2245\" data-start=\"2189\"\u003eMid-pipe and axle-back can be installed independently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2388\" data-start=\"2246\"\u003e\n\u003cp data-end=\"2388\" data-start=\"2248\"\u003eWhen installing only a mid-pipe or axle-back,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2344\" data-start=\"2294\"\u003emake the rear-section cut at the second dimple\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the OEM pipe to ensure proper fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2441\" data-start=\"2389\"\u003e\n\u003cp data-end=\"2441\" data-start=\"2391\"\u003e100%\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2410\" data-start=\"2396\"\u003ereversible\u003c\/strong\u003e—return to stock at any time.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2441\" data-start=\"2389\"\u003e\u003ca title=\"G8x Install Guide\" href=\"https:\/\/youtu.be\/0wpjSUXVG2Y\" target=\"_blank\"\u003e\u003cstrong\u003eCLICK HERE FOR INSTALL GUIDE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2547\" data-start=\"2511\"\u003eCompatibility Notice (V3 Systems)\u003c\/h2\u003e\n\u003cul data-end=\"2762\" data-start=\"2548\"\u003e\n\u003cli data-end=\"2600\" data-start=\"2548\"\u003e\n\u003cp data-end=\"2600\" data-start=\"2550\"\u003e\u003cstrong data-end=\"2598\" data-start=\"2550\"\u003eV1\/V2 components are not compatible with V3.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2762\" data-start=\"2601\"\u003e\n\u003cp data-end=\"2762\" data-start=\"2603\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"2622\" data-start=\"2607\"\u003eV3 mid-pipe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eincludes additional clearances at the downpipe connection and mid-section; small visible gaps prior to tightening are normal and by design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2782\" data-start=\"2764\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul data-end=\"2923\" data-start=\"2783\"\u003e\n\u003cli data-end=\"2829\" data-start=\"2783\"\u003e\n\u003cp data-end=\"2829\" data-start=\"2785\"\u003eSingle 3.5\" equal-length mid-pipe assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2845\" data-start=\"2830\"\u003e\n\u003cp data-end=\"2845\" data-start=\"2832\"\u003eCross brace\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2901\" data-start=\"2846\"\u003e\n\u003cp data-end=\"2901\" data-start=\"2848\"\u003eOptional: Valved axle-back with controller and tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2923\" data-start=\"2902\"\u003e\n\u003cp data-end=\"2923\" data-start=\"2904\"\u003eHardware and clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2942\" data-start=\"2925\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-end=\"3185\" data-start=\"2943\"\u003e\n\u003cli data-end=\"2994\" data-start=\"2943\"\u003e\n\u003cp data-end=\"2994\" data-start=\"2945\"\u003eTubing diameter: 3.5\" mid-pipe; 2.75\" axle-back\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3054\" data-start=\"2995\"\u003e\n\u003cp data-end=\"3054\" data-start=\"2997\"\u003eMaterials: T304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"3035\" data-start=\"3029\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGrade 5 titanium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3112\" data-start=\"3055\"\u003e\n\u003cp data-end=\"3112\" data-start=\"3057\"\u003eFinish: Brushed (Stainless) or raw\/brushed (Titanium)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3185\" data-start=\"3113\"\u003e\n\u003cp data-end=\"3185\" data-start=\"3115\"\u003eValves: Electronic, with remote controller (OEM integration available)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45696360775878,"sku":null,"price":1999.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/A7400181_2adafdd0-1f6c-4605-8f4c-04117041937d.webp?v=1775611369"},{"product_id":"bmw-g87-m2-valved-sport-exhaust-system","title":"BMW G87 M2 Valved Sport Exhaust System","description":"\u003ch1 data-start=\"150\" data-end=\"196\"\u003e\u003cstrong data-start=\"152\" data-end=\"194\"\u003eBMW G87 M2 Valved Sport Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-start=\"197\" data-end=\"273\"\u003eT304 Stainless Steel or Grade 5 Titanium – Equal Length Midpipe Design\u003c\/h3\u003e\n\u003chr data-start=\"275\" data-end=\"278\"\u003e\n\u003ch2 data-start=\"280\" data-end=\"297\"\u003e\u003cstrong data-start=\"283\" data-end=\"295\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"298\" data-end=\"734\"\u003eThe littlest M car just got a big upgrade. The Valvetronic Designs G87 M2 Valved Sport Exhaust transforms the factory-muted tone into a rich, aggressive soundtrack worthy of BMW’s newest M platform. Drawing from our proven G80 M3 equal length midpipe technology, this system delivers exceptional volume, improved tone, and a more engaging driving experience—tailored to the unique fitment needs of the G87’s shorter wheelbase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSound with Free Flow Downpipes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/bOBuEovjQ7w?si=fEsoQF3lLreNj18y\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSound with Stock Downpipes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/i_0XSs9kdmI?si=G8-PPVatRDpk-R1W\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"741\" data-end=\"765\"\u003e\u003cstrong data-start=\"744\" data-end=\"763\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"766\" data-end=\"1216\"\u003e\n\u003cli data-start=\"766\" data-end=\"894\"\u003e\n\u003cp data-start=\"768\" data-end=\"894\"\u003e\u003cstrong data-start=\"768\" data-end=\"793\"\u003eEqual Length Midpipe:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.5-inch free-flow design smooths tone, eliminates unwanted rasp, and enhances exhaust scavenging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"895\" data-end=\"989\"\u003e\n\u003cp data-start=\"897\" data-end=\"989\"\u003e\u003cstrong data-start=\"897\" data-end=\"913\"\u003eValves Open:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUnrestricted, aggressive tone with powerful overrun and a high-RPM scream.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"990\" data-end=\"1091\"\u003e\n\u003cp data-start=\"992\" data-end=\"1091\"\u003e\u003cstrong data-start=\"992\" data-end=\"1010\"\u003eValves Closed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRefined, stock-like volume for comfortable commuting and early morning starts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1092\" data-end=\"1216\"\u003e\n\u003cp data-start=\"1094\" data-end=\"1216\"\u003e\u003cstrong data-start=\"1094\" data-end=\"1123\"\u003eElectronic Valve Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated remote for rapid open\/close functionality, with optional OEM valve integration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/Zx-PGmurFvw?si=eTqZCMTieUJM-zyN\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"1223\" data-end=\"1255\"\u003e\u003cstrong data-start=\"1226\" data-end=\"1253\"\u003ePerformance Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1256\" data-end=\"1700\"\u003e\n\u003cli data-start=\"1256\" data-end=\"1368\"\u003e\n\u003cp data-start=\"1258\" data-end=\"1368\"\u003e\u003cstrong data-start=\"1258\" data-end=\"1283\"\u003ePremium Construction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAvailable in brushed\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1305\" data-end=\"1329\"\u003eT304 stainless steel\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor lightweight\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1345\" data-end=\"1365\"\u003eGrade 5 titanium\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1369\" data-end=\"1497\"\u003e\n\u003cp data-start=\"1371\" data-end=\"1394\"\u003e\u003cstrong data-start=\"1371\" data-end=\"1392\"\u003eWeight Reduction:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1397\" data-end=\"1497\"\u003e\n\u003cli data-start=\"1397\" data-end=\"1442\"\u003e\n\u003cp data-start=\"1399\" data-end=\"1442\"\u003e\u003cstrong data-start=\"1399\" data-end=\"1412\"\u003eTitanium:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e55.8 lbs lighter than stock\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1445\" data-end=\"1497\"\u003e\n\u003cp data-start=\"1447\" data-end=\"1497\"\u003e\u003cstrong data-start=\"1447\" data-end=\"1467\"\u003eStainless Steel:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e26.0 lbs lighter than stock\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1498\" data-end=\"1590\"\u003e\n\u003cp data-start=\"1500\" data-end=\"1590\"\u003e\u003cstrong data-start=\"1500\" data-end=\"1519\"\u003eDirect Bolt-On:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUses OEM mounting points and connects directly to factory downpipes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1591\" data-end=\"1700\"\u003e\n\u003cp data-start=\"1593\" data-end=\"1700\"\u003e\u003cstrong data-start=\"1593\" data-end=\"1621\"\u003ePrecision Craftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTIG-welded for strength and durability, fully mandrel-bent for maximum flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/FfS4Ho1V95M?si=R57HSPK2D4Wkw5M1\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"1707\" data-end=\"1723\"\u003e\u003cstrong data-start=\"1710\" data-end=\"1721\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1724\" data-end=\"1748\"\u003e\n\u003cli data-start=\"1724\" data-end=\"1748\"\u003e\n\u003cp data-start=\"1726\" data-end=\"1748\"\u003e\u003cstrong data-start=\"1726\" data-end=\"1746\"\u003e2022+ BMW G87 M2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1750\" data-end=\"1753\"\u003e\n\u003ch2 data-start=\"1755\" data-end=\"1772\"\u003e\u003cstrong data-start=\"1758\" data-end=\"1770\"\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1773\" data-end=\"2126\"\u003e\n\u003cli data-start=\"1773\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1775\" data-end=\"1835\"\u003eEqual length 3.5-inch midpipe for improved tone and volume\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1836\" data-end=\"1903\"\u003e\n\u003cp data-start=\"1838\" data-end=\"1903\"\u003eChoice of T304 stainless steel or Grade 5 titanium construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1904\" data-end=\"1962\"\u003e\n\u003cp data-start=\"1906\" data-end=\"1962\"\u003eElectronic exhaust valves with included remote control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1963\" data-end=\"1997\"\u003e\n\u003cp data-start=\"1965\" data-end=\"1997\"\u003eOptional OEM valve integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1998\" data-end=\"2038\"\u003e\n\u003cp data-start=\"2000\" data-end=\"2038\"\u003eBeautiful, customizable exhaust tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2039\" data-end=\"2078\"\u003e\n\u003cp data-start=\"2041\" data-end=\"2078\"\u003eFully mandrel-bent for optimal flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2079\" data-end=\"2126\"\u003e\n\u003cp data-start=\"2081\" data-end=\"2126\"\u003e100% reversible—return to stock at any time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr data-start=\"2128\" data-end=\"2131\"\u003e\n\u003cp data-start=\"2133\" data-end=\"2155\"\u003e\u003cstrong data-start=\"2133\" data-end=\"2153\"\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2156\" data-end=\"2460\"\u003e\n\u003cli data-start=\"2156\" data-end=\"2292\"\u003e\n\u003cp data-start=\"2158\" data-end=\"2292\"\u003eWhen installing\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2174\" data-end=\"2194\"\u003ejust the midpipe\u003c\/strong\u003e, make the cut at the OEM rear section between the first and second\u003cspan\u003e \u003c\/span\u003e\u003cem data-start=\"2262\" data-end=\"2270\"\u003edimple\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003efor proper fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2293\" data-end=\"2460\"\u003e\n\u003cp data-start=\"2295\" data-end=\"2460\"\u003eOlder Valvetronic Designs systems (V1\/V2) are\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2341\" data-end=\"2359\"\u003enot compatible\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith the latest V3 cat-back system. Upgrading to the V3 design is required for full compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Full System \/ Stainless Steel \/ Brushed Steel (3.5 Outlet)","offer_id":45697105854662,"sku":"BMW.G87.M2.VSES.BR.BRSH-1","price":4999.99,"currency_code":"AUD","in_stock":true},{"title":"Full System \/ Stainless Steel \/ Burnt (3.5 Outlet)","offer_id":45697105887430,"sku":"BMW.G87.M2.VSES.BR.BRSH-2","price":4999.99,"currency_code":"AUD","in_stock":true},{"title":"Full System \/ Stainless Steel \/ Black (3.5 Outlet)","offer_id":45697105920198,"sku":"BMW.G87.M2.VSES.BR.BRSH-3","price":4999.99,"currency_code":"AUD","in_stock":true},{"title":"Full System \/ Stainless 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Fibre (4.0 Outlet)","offer_id":45697106837702,"sku":"BMW.G87.M2.VSES.BR.BRSH-47","price":7899.0,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ Brushed Steel (3.5 Outlet)","offer_id":45697106870470,"sku":"BMW.G87.M2.VSES.BR.BRSH-50","price":9599.99,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ Burnt (3.5 Outlet)","offer_id":45697106903238,"sku":"BMW.G87.M2.VSES.BR.BRSH-51","price":9599.99,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ Black (3.5 Outlet)","offer_id":45697106936006,"sku":"BMW.G87.M2.VSES.BR.BRSH-52","price":9599.99,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ Forged Carbon (3.5 Outlet)","offer_id":45697106968774,"sku":"BMW.G87.M2.VSES.BR.BRSH-53","price":9599.99,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ 1X1 Carbon Fibre (4.0 Outlet)","offer_id":45697107001542,"sku":"BMW.G87.M2.VSES.BR.BRSH-54","price":9599.99,"currency_code":"AUD","in_stock":true},{"title":"Full System + 400C Downpipes \/ Titanium \/ Raw Titanium Burnt (4.0 Outlet)","offer_id":45697107034310,"sku":"BMW.G87.M2.VSES.BR.BRSH-55","price":9599.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/A7400202_f55ad7b4-9ef2-4426-8dd8-bacdf009d7bc.webp?v=1775628641"},{"product_id":"bmw-f87-m2-valved-sport-exhaust-system-n55","title":"BMW F87 M2 Valved Sport Exhaust System (N55)","description":"\u003cdiv\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/HaggN2bmb1k?si=qbmfcKhKKXxLjcU6\u0026amp;start=1\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch1 data-end=\"163\" data-start=\"119\"\u003e\u003cstrong data-end=\"161\" data-start=\"121\"\u003eBMW F87 M2 N55 Valved Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-end=\"248\" data-start=\"164\"\u003eT304 Stainless Steel – 3\" Inlet, Dual 2.5\" Mandrel-Bent Pipes with Vacuum Valves\u003c\/h3\u003e\n\u003chr data-end=\"253\" data-start=\"250\"\u003e\n\u003ch2 data-end=\"272\" data-start=\"255\"\u003e\u003cstrong data-end=\"270\" data-start=\"258\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"688\" data-start=\"273\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"322\" data-start=\"277\"\u003eValvetronic Designs Valved Exhaust System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor the BMW F87 M2 unlocks the full potential of the N55 engine, delivering maximum sound when you want it and refined quietness when you don’t. Built from premium T304 stainless steel, the system connects to any downpipe and runs a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"582\" data-start=\"556\"\u003e3-inch primary section\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebefore splitting into\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"641\" data-start=\"605\"\u003edual 2.5-inch mandrel-bent pipes\u003c\/strong\u003e, exiting through a set of premium quad tips.\u003c\/p\u003e\n\u003cp data-end=\"1006\" data-start=\"690\"\u003eThis unique split design accelerates exhaust gas flow for improved performance and a more engaging tone compared to traditional single-pipe systems. Vacuum-actuated valves provide rapid operation and proven long-term reliability, all controlled by a standalone module that allows valve control in any driving mode.\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/yKOZM5PcEE8?si=trUZMLD-1DDt-Yi3\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1034\" data-start=\"1013\"\u003e\u003cstrong data-end=\"1032\" data-start=\"1016\"\u003eWhy It Works\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1382\" data-start=\"1035\"\u003e\n\u003cli data-end=\"1166\" data-start=\"1035\"\u003e\n\u003cp data-end=\"1166\" data-start=\"1037\"\u003e\u003cstrong data-end=\"1068\" data-start=\"1037\"\u003eOptimized Dual-Pipe Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSplitting into two 2.5\" pipes after the downpipe improves scavenging and enhances exhaust tone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1271\" data-start=\"1167\"\u003e\n\u003cp data-end=\"1271\" data-start=\"1169\"\u003e\u003cstrong data-end=\"1193\" data-start=\"1169\"\u003eVacuum Valve System:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReliable and responsive, with standalone control for operation at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1382\" data-start=\"1272\"\u003e\n\u003cp data-end=\"1382\" data-start=\"1274\"\u003e\u003cstrong data-end=\"1300\" data-start=\"1274\"\u003eImproved Flow \u0026amp; Sound:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFlows more efficiently and sounds richer than OEM and many aftermarket options.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1387\" data-start=\"1384\"\u003e\n\u003ch2 data-end=\"1413\" data-start=\"1389\"\u003e\u003cstrong data-end=\"1411\" data-start=\"1392\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1642\" data-start=\"1414\"\u003e\n\u003cli data-end=\"1490\" data-start=\"1414\"\u003e\n\u003cp data-end=\"1490\" data-start=\"1416\"\u003e\u003cstrong data-end=\"1432\" data-start=\"1416\"\u003eValves Open:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRaw, aggressive tone with maximum volume and character.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1563\" data-start=\"1491\"\u003e\n\u003cp data-end=\"1563\" data-start=\"1493\"\u003e\u003cstrong data-end=\"1511\" data-start=\"1493\"\u003eValves Closed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRefined, daily-drivable sound levels for comfort.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1642\" data-start=\"1564\"\u003e\n\u003cp data-end=\"1642\" data-start=\"1566\"\u003e\u003cstrong data-end=\"1592\" data-start=\"1566\"\u003eStandalone Controller:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperates independently of drive mode selection.\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/VfyrCqRE9is?si=sSQifE-m1JLmOgbs\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1680\" data-start=\"1649\"\u003e\u003cstrong data-end=\"1678\" data-start=\"1652\"\u003eConstruction \u0026amp; Quality\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1991\" data-start=\"1681\"\u003e\n\u003cli data-end=\"1766\" data-start=\"1681\"\u003e\n\u003cp data-end=\"1766\" data-start=\"1683\"\u003e\u003cstrong data-end=\"1696\" data-start=\"1683\"\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBrushed T304 stainless steel for strength and corrosion resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1831\" data-start=\"1767\"\u003e\n\u003cp data-end=\"1831\" data-start=\"1769\"\u003e\u003cstrong data-end=\"1788\" data-start=\"1769\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.3 lb lighter than the factory exhaust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1905\" data-start=\"1832\"\u003e\n\u003cp data-end=\"1905\" data-start=\"1834\"\u003e\u003cstrong data-end=\"1852\" data-start=\"1834\"\u003eCraftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePrecision TIG welds and fully mandrel-bent tubing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1991\" data-start=\"1906\"\u003e\n\u003cp data-end=\"1991\" data-start=\"1908\"\u003e\u003cstrong data-end=\"1917\" data-start=\"1908\"\u003eTips:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBeautiful sleeve-style tips designed to complement the F87 rear fascia.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1996\" data-start=\"1993\"\u003e\n\u003ch2 data-end=\"2014\" data-start=\"1998\"\u003e\u003cstrong data-end=\"2012\" data-start=\"2001\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2049\" data-start=\"2015\"\u003e\n\u003cli data-end=\"2049\" data-start=\"2015\"\u003e\n\u003cp data-end=\"2049\" data-start=\"2017\"\u003e\u003cstrong data-end=\"2047\" data-start=\"2017\"\u003e2016–2018 BMW F87 M2 (N55)\u003c\/strong\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/I6X6e1QVNrk?si=u099hApMMOGkEeqC\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2083\" data-start=\"2056\"\u003e\u003cstrong data-end=\"2081\" data-start=\"2059\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2202\" data-start=\"2084\"\u003e\n\u003cli data-end=\"2153\" data-start=\"2084\"\u003e\n\u003cp data-end=\"2153\" data-start=\"2086\"\u003eDirect bolt-on installation; no permanent modifications required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2202\" data-start=\"2154\"\u003e\n\u003cp data-end=\"2202\" data-start=\"2156\"\u003e100% reversible—return to stock at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2207\" data-start=\"2204\"\u003e\n\u003ch2 data-end=\"2233\" data-start=\"2209\"\u003e\u003cstrong data-end=\"2231\" data-start=\"2212\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2406\" data-start=\"2234\"\u003e\n\u003cli data-end=\"2280\" data-start=\"2234\"\u003e\n\u003cp data-end=\"2280\" data-start=\"2236\"\u003eT304 stainless steel valved exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2334\" data-start=\"2281\"\u003e\n\u003cp data-end=\"2334\" data-start=\"2283\"\u003eVacuum-actuated valves with standalone controller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2369\" data-start=\"2335\"\u003e\n\u003cp data-end=\"2369\" data-start=\"2337\"\u003eQuad sleeve-style exhaust tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2406\" data-start=\"2370\"\u003e\n\u003cp data-end=\"2406\" data-start=\"2372\"\u003eAll required clamps and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2411\" data-start=\"2408\"\u003e\n\u003ch2 data-end=\"2436\" data-start=\"2413\"\u003e\u003cstrong data-end=\"2434\" data-start=\"2416\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2702\" data-start=\"2437\"\u003e\n\u003cli data-end=\"2479\" data-start=\"2437\"\u003e\n\u003cp data-end=\"2479\" data-start=\"2439\"\u003e\u003cstrong data-end=\"2458\" data-start=\"2439\"\u003eInlet Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3\" primary section\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2528\" data-start=\"2480\"\u003e\n\u003cp data-end=\"2528\" data-start=\"2482\"\u003e\u003cstrong data-end=\"2502\" data-start=\"2482\"\u003eOutlet Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDual 2.5\" pipes to tips\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2567\" data-start=\"2529\"\u003e\n\u003cp data-end=\"2567\" data-start=\"2531\"\u003e\u003cstrong data-end=\"2544\" data-start=\"2531\"\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2623\" data-start=\"2568\"\u003e\n\u003cp data-end=\"2623\" data-start=\"2570\"\u003e\u003cstrong data-end=\"2581\" data-start=\"2570\"\u003eValves:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVacuum-actuated with standalone control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2662\" data-start=\"2624\"\u003e\n\u003cp data-end=\"2662\" data-start=\"2626\"\u003e\u003cstrong data-end=\"2645\" data-start=\"2626\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.3 lb vs. OEM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2702\" data-start=\"2663\"\u003e\n\u003cp data-end=\"2702\" data-start=\"2665\"\u003e\u003cstrong data-end=\"2676\" data-start=\"2665\"\u003eFinish:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBrushed stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Valvetronics","offers":[{"title":"(4) Brushed Steel (3.5\" Outlet)","offer_id":45722981040326,"sku":"BMW.F87.M2.VSES.BR.BRSH","price":3831.92,"currency_code":"AUD","in_stock":true},{"title":"(4) Burnt (3.5\" Outlet)","offer_id":45722981073094,"sku":"BMW.F87.M2.VSES.BR.BRT","price":3831.92,"currency_code":"AUD","in_stock":true},{"title":"(4) Black (3.5\" Outlet)","offer_id":45722981105862,"sku":"BMW.F87.M2.VSES.BR.BLK","price":3831.92,"currency_code":"AUD","in_stock":true},{"title":"(4) Forged Carbon Fiber  (3.5\" Outlet)","offer_id":45722981138630,"sku":"BMW.F87.M2.VSES.BR.FC","price":3831.92,"currency_code":"AUD","in_stock":true},{"title":"(4) Carbon Fiber 1x1 (3.5\" Outlet)","offer_id":45722981171398,"sku":"BMW.F87.M2.VSES.BR.RC","price":3831.92,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/A7400659.webp?v=1776232922"},{"product_id":"bmw-f80-m3-equal-length-valved-sport-exhaust-system","title":"BMW F80 M3 Equal Length Valved Sport Exhaust System","description":"\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/iHfweazxIII?si=KV7buZBhze4lR8Bt\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch1 data-end=\"167\" data-start=\"115\"\u003e\u003cstrong data-end=\"165\" data-start=\"117\"\u003eBMW F8X M3\/M4 Valved Cat-Back Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-end=\"235\" data-start=\"168\"\u003eEqual-Length 2.75\" Mid-Section with H-Pipe and 3.5\" Axle-Back\u003c\/h3\u003e\n\u003cp data-end=\"280\" data-start=\"236\"\u003e\u003cem data-end=\"280\" data-start=\"236\"\u003e(T304 Stainless Steel or Grade 5 Titanium)\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-end=\"285\" data-start=\"282\"\u003e\n\u003ch2 data-end=\"304\" data-start=\"287\"\u003e\u003cstrong data-end=\"302\" data-start=\"290\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"678\" data-start=\"305\"\u003eThe S55 engine powering the BMW F8X M3 and M4 is a performance masterpiece, but its stock exhaust note has long been criticized for excessive rasp and a lack of tonal depth. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"535\" data-start=\"483\"\u003eValvetronic Designs Equal-Length Valved Cat-Back\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the definitive solution—eliminating the factory harshness and unlocking the rich, balanced sound the S55 was always capable of producing.\u003c\/p\u003e\n\u003cp data-end=\"1173\" data-start=\"680\"\u003eThis system features a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"756\" data-start=\"703\"\u003e2.75-inch equal-length mid-section with an H-pipe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeeding into a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"794\" data-start=\"772\"\u003e3.5-inch axle-back\u003c\/strong\u003e. The equal-length design smooths the exhaust tone across the rev range while preserving the aggressive character owners love. With valves open, gases exit freely from the passenger-side tips for maximum volume and performance. With valves closed, flow is routed through our quad-chamber muffler to the driver-side tips for a quieter, more refined note—ideal for daily driving.\u003c\/p\u003e\n\u003cp data-end=\"1288\" data-start=\"1175\"\u003eNo cutting or welding is required—this is a true\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1249\" data-start=\"1224\"\u003edirect bolt-on system\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned to mount to factory points.\u003c\/p\u003e\n\u003cp data-end=\"1288\" data-start=\"1175\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/AwbRTFOi1mo?si=wKyXAmp6W9HurCcw\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1316\" data-start=\"1295\"\u003e\u003cstrong data-end=\"1314\" data-start=\"1298\"\u003eWhy It Works\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1583\" data-start=\"1317\"\u003e\n\u003cli data-end=\"1422\" data-start=\"1317\"\u003e\n\u003cp data-end=\"1422\" data-start=\"1319\"\u003e\u003cstrong data-end=\"1348\" data-start=\"1319\"\u003eEqual-Length Mid-Section:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBalances pulses for a cleaner, smoother tone without losing aggression.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1499\" data-start=\"1423\"\u003e\n\u003cp data-end=\"1499\" data-start=\"1425\"\u003e\u003cstrong data-end=\"1443\" data-start=\"1425\"\u003eH-Pipe Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eImproves scavenging for a fuller, more refined sound.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1583\" data-start=\"1500\"\u003e\n\u003cp data-end=\"1583\" data-start=\"1502\"\u003e\u003cstrong data-end=\"1526\" data-start=\"1502\"\u003eDual-Mode Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRaw and loud (open) or subdued and civilized (closed).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1588\" data-start=\"1585\"\u003e\n\u003ch2 data-end=\"1614\" data-start=\"1590\"\u003e\u003cstrong data-end=\"1612\" data-start=\"1593\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1878\" data-start=\"1615\"\u003e\n\u003cli data-end=\"1716\" data-start=\"1615\"\u003e\n\u003cp data-end=\"1716\" data-start=\"1617\"\u003e\u003cstrong data-end=\"1633\" data-start=\"1617\"\u003eValves Open:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAggressive, free-breathing tone with reduced rasp and improved high-rpm clarity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1785\" data-start=\"1717\"\u003e\n\u003cp data-end=\"1785\" data-start=\"1719\"\u003e\u003cstrong data-end=\"1737\" data-start=\"1719\"\u003eValves Closed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStock-like sound levels for stealthy driving.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1878\" data-start=\"1786\"\u003e\n\u003cp data-end=\"1878\" data-start=\"1788\"\u003e\u003cstrong data-end=\"1817\" data-start=\"1788\"\u003eElectronic Valve Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes standalone controller; OEM integration available.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/LNseyKBqB4c?si=aaey2ZS6ZlNfxtqA\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1916\" data-start=\"1885\"\u003e\u003cstrong data-end=\"1914\" data-start=\"1888\"\u003eConstruction \u0026amp; Options\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2223\" data-start=\"1917\"\u003e\n\u003cli data-end=\"1981\" data-start=\"1917\"\u003e\n\u003cp data-end=\"1981\" data-start=\"1919\"\u003e\u003cstrong data-end=\"1933\" data-start=\"1919\"\u003eMaterials:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1961\" data-start=\"1955\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGrade 5 titanium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2057\" data-start=\"1982\"\u003e\n\u003cp data-end=\"2057\" data-start=\"1984\"\u003e\u003cstrong data-end=\"2003\" data-start=\"1984\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–21.7 lb (Stainless) \/ –49.2 lb (Titanium) vs. OEM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2148\" data-start=\"2058\"\u003e\n\u003cp data-end=\"2148\" data-start=\"2060\"\u003e\u003cstrong data-end=\"2078\" data-start=\"2060\"\u003eCraftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePrecision TIG welds and fully mandrel-bent tubing for maximum flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2223\" data-start=\"2149\"\u003e\n\u003cp data-end=\"2223\" data-start=\"2151\"\u003e\u003cstrong data-end=\"2160\" data-start=\"2151\"\u003eTips:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMultiple premium finish options to complement your M3 or M4.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2228\" data-start=\"2225\"\u003e\n\u003ch2 data-end=\"2246\" data-start=\"2230\"\u003e\u003cstrong data-end=\"2244\" data-start=\"2233\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2357\" data-start=\"2247\"\u003e\n\u003cli data-end=\"2277\" data-start=\"2247\"\u003e\n\u003cp data-end=\"2277\" data-start=\"2249\"\u003e\u003cstrong data-end=\"2275\" data-start=\"2249\"\u003e2015–2018 BMW M3 (F80)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2314\" data-start=\"2278\"\u003e\n\u003cp data-end=\"2314\" data-start=\"2280\"\u003e\u003cstrong data-end=\"2312\" data-start=\"2280\"\u003e2015–2020 BMW M4 Coupe (F82)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2357\" data-start=\"2315\"\u003e\n\u003cp data-end=\"2357\" data-start=\"2317\"\u003e\u003cstrong data-end=\"2355\" data-start=\"2317\"\u003e2015–2020 BMW M4 Convertible (F83)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-end=\"2355\" data-start=\"2317\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/M30lYzI0Tq0?si=YJdX74ohtc9Ugdjx\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2391\" data-start=\"2364\"\u003e\u003cstrong data-end=\"2389\" data-start=\"2367\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2683\" data-start=\"2392\"\u003e\n\u003cli data-end=\"2443\" data-start=\"2392\"\u003e\n\u003cp data-end=\"2443\" data-start=\"2394\"\u003eDirect bolt-on; no cutting or welding required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2492\" data-start=\"2444\"\u003e\n\u003cp data-end=\"2492\" data-start=\"2446\"\u003e100% reversible—return to stock at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2683\" data-start=\"2493\"\u003e\n\u003cp data-end=\"2683\" data-start=\"2495\"\u003e\u003cem data-end=\"2517\" data-start=\"2495\"\u003eNote for S55 Owners:\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eOn free-flow\/race downpipes, “2k rpm rasp” may be present during low-rpm shifts. For the most refined tone, we recommend high-flow (200 cell) catalytic converters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2688\" data-start=\"2685\"\u003e\n\u003ch2 data-end=\"2714\" data-start=\"2690\"\u003e\u003cstrong data-end=\"2712\" data-start=\"2693\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2910\" data-start=\"2715\"\u003e\n\u003cli data-end=\"2756\" data-start=\"2715\"\u003e\n\u003cp data-end=\"2756\" data-start=\"2717\"\u003e2.75\" equal-length H-pipe mid-section\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2801\" data-start=\"2757\"\u003e\n\u003cp data-end=\"2801\" data-start=\"2759\"\u003e3.5\" axle-back with quad-chamber muffler\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2872\" data-start=\"2802\"\u003e\n\u003cp data-end=\"2872\" data-start=\"2804\"\u003eElectronic valve system with controller (OEM integration optional)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2910\" data-start=\"2873\"\u003e\n\u003cp data-end=\"2910\" data-start=\"2875\"\u003eAll necessary clamps and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/VaFdvNKLGPQ?si=NTiGihorL4ViXjHv\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2940\" data-start=\"2917\"\u003e\u003cstrong data-end=\"2938\" data-start=\"2920\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"3280\" data-start=\"2941\"\u003e\n\u003cli data-end=\"3001\" data-start=\"2941\"\u003e\n\u003cp data-end=\"3001\" data-start=\"2943\"\u003e\u003cstrong data-end=\"2968\" data-start=\"2943\"\u003eMid-Section Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.75\" equal-length with H-pipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3034\" data-start=\"3002\"\u003e\n\u003cp data-end=\"3034\" data-start=\"3004\"\u003e\u003cstrong data-end=\"3027\" data-start=\"3004\"\u003eAxle-Back Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.5\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3093\" data-start=\"3035\"\u003e\n\u003cp data-end=\"3093\" data-start=\"3037\"\u003e\u003cstrong data-end=\"3050\" data-start=\"3037\"\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel or Grade 5 titanium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3138\" data-start=\"3094\"\u003e\n\u003cp data-end=\"3138\" data-start=\"3096\"\u003e\u003cstrong data-end=\"3107\" data-start=\"3096\"\u003eValves:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eElectronic, rapid open\/close\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3213\" data-start=\"3139\"\u003e\n\u003cp data-end=\"3213\" data-start=\"3141\"\u003e\u003cstrong data-end=\"3160\" data-start=\"3141\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–21.7 lb (Stainless) \/ –49.2 lb (Titanium) vs. OEM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3280\" data-start=\"3214\"\u003e\n\u003cp data-end=\"3280\" data-start=\"3216\"\u003e\u003cstrong data-end=\"3227\" data-start=\"3216\"\u003eDesign:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eQuad-chamber muffler for refined closed-valve tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Stainless Steel \/ (4) Brushed Steel (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653453510,"sku":"BMW.F8X.M3.M4.VSES.BR.BRSH","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Brushed Steel (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653486278,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BRSH","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Burnt (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653519046,"sku":"BMW.F8X.M3.M4.VSES.BR.BRT","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Burnt (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653551814,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BRT","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Black (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653584582,"sku":"BMW.F8X.M3.M4.VSES.BR.BLK","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Black (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653617350,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BLK","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653650118,"sku":"BMW.F8X.M3.M4.VSES.BR.RC","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653682886,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.RC","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653715654,"sku":"BMW.F8X.M3.M4.VSES.BR.FC","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653748422,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.FC","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Raw Titanium (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653781190,"sku":null,"price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Raw Titanium (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653813958,"sku":null,"price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Brushed Steel (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653846726,"sku":"BMW.F8X.M3.M4.VSES.TI.BRSH","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Brushed Steel (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653879494,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.BRSH","price":8515.4,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Burnt (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653912262,"sku":"BMW.F8X.M3.M4.VSES.TI.BRT","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Burnt (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724653945030,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.BRT","price":8515.4,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Black (3.5\" Outlet) \/ Full Exhaust","offer_id":45724653977798,"sku":"BMW.F8X.M3.M4.VSES.TI.BLK","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Black (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724654010566,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.BLK","price":8515.4,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724654043334,"sku":"BMW.F8X.M3.M4.VSES.TI.RC","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724654076102,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.RC","price":8515.4,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724654108870,"sku":"BMW.F8X.M3.M4.VSES.TI.FC","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724654141638,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.FC","price":8515.4,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Raw Titanium (3.5\" Outlet) \/ Full Exhaust","offer_id":45724654174406,"sku":"BMW.F8X.M3.M4.VSES.TI.TIBRT","price":5676.93,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Raw Titanium (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724654207174,"sku":"BMW.F8X.M3.M4.VSES.400C.TI.TIBRT","price":8515.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_95f5b1d3-e092-431a-8627-6693d03869e0.webp?v=1776250936"},{"product_id":"bmw-f80-m3-extended-chassis-brace","title":"BMW F80 M3 Extended Chassis Brace","description":"\u003cp\u003e\u003cspan\u003eNeed a new brace to fit your larger exhaust for your F80? Order this!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Default Title","offer_id":45724654502086,"sku":"BMW.F8X.CHAS.BRACE","price":212.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_fff664db-7efa-4ef7-bf9d-2b04e95ea97f.webp?v=1776252395"},{"product_id":"electronic-exhaust-valve-control-kit","title":"Electronic Exhaust Valve Control Kit","description":"\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/1NEL8ASolFw?si=QRBiiMClUrcst3cY\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eWelcome everybody to the Valvetronic Designs electronic control module. This system allows you to control your OEM or aftermarket exhaust valves with a touch of a button. There are two options for the kit, there is a single valve option and a dual valve option.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eApplicable to all exhaust systems with ELECTRONIC EXHAUST VALVES\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEXAMPLES:\u003c\/p\u003e\n\u003cp\u003e- BMW G80 M3 (2 Valve motor kit needed)\u003c\/p\u003e\n\u003cp\u003e- BMW F30 320i (1 Valve motor kit needed)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIf you ordered an F chassis exhaust for your F30 320i BMW which does not have an exhaust valve, you will use this kit to restore functionality and allow operation of the exhaust valve from within the vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"1 Valve Actuator + 1 Valve to controller wire","offer_id":45724657057990,"sku":"VTD.EVH","price":425.76,"currency_code":"AUD","in_stock":true},{"title":"2 Valve Actuators + 2 Valve to controller wires","offer_id":45724657090758,"sku":"VTD.EVH.2","price":567.68,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/image_276f3efd-33f3-4ca0-ad4c-d4bf3a308a37.jpg?v=1776252597"},{"product_id":"bmw-f82-f83-m4-equal-length-valved-sport-exhaust-system","title":"BMW F82\/F83 M4 Equal Length Valved Sport Exhaust System","description":"\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/iHfweazxIII?si=KV7buZBhze4lR8Bt\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch1 data-end=\"167\" data-start=\"115\"\u003e\u003cstrong data-end=\"165\" data-start=\"117\"\u003eBMW F8X M3\/M4 Valved Cat-Back Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 data-end=\"235\" data-start=\"168\"\u003eEqual-Length 2.75\" Mid-Section with H-Pipe and 3.5\" Axle-Back\u003c\/h3\u003e\n\u003cp data-end=\"280\" data-start=\"236\"\u003e\u003cem data-end=\"280\" data-start=\"236\"\u003e(T304 Stainless Steel or Grade 5 Titanium)\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-end=\"285\" data-start=\"282\"\u003e\n\u003ch2 data-end=\"304\" data-start=\"287\"\u003e\u003cstrong data-end=\"302\" data-start=\"290\"\u003eOverview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"678\" data-start=\"305\"\u003eThe S55 engine powering the BMW F8X M3 and M4 is a performance masterpiece, but its stock exhaust note has long been criticized for excessive rasp and a lack of tonal depth. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"535\" data-start=\"483\"\u003eValvetronic Designs Equal-Length Valved Cat-Back\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the definitive solution—eliminating the factory harshness and unlocking the rich, balanced sound the S55 was always capable of producing.\u003c\/p\u003e\n\u003cp data-end=\"1173\" data-start=\"680\"\u003eThis system features a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"756\" data-start=\"703\"\u003e2.75-inch equal-length mid-section with an H-pipe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeeding into a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"794\" data-start=\"772\"\u003e3.5-inch axle-back\u003c\/strong\u003e. The equal-length design smooths the exhaust tone across the rev range while preserving the aggressive character owners love. With valves open, gases exit freely from the passenger-side tips for maximum volume and performance. With valves closed, flow is routed through our quad-chamber muffler to the driver-side tips for a quieter, more refined note—ideal for daily driving.\u003c\/p\u003e\n\u003cp data-end=\"1288\" data-start=\"1175\"\u003eNo cutting or welding is required—this is a true\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1249\" data-start=\"1224\"\u003edirect bolt-on system\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned to mount to factory points.\u003c\/p\u003e\n\u003cp data-end=\"1288\" data-start=\"1175\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/AwbRTFOi1mo?si=wKyXAmp6W9HurCcw\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1316\" data-start=\"1295\"\u003e\u003cstrong data-end=\"1314\" data-start=\"1298\"\u003eWhy It Works\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1583\" data-start=\"1317\"\u003e\n\u003cli data-end=\"1422\" data-start=\"1317\"\u003e\n\u003cp data-end=\"1422\" data-start=\"1319\"\u003e\u003cstrong data-end=\"1348\" data-start=\"1319\"\u003eEqual-Length Mid-Section:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBalances pulses for a cleaner, smoother tone without losing aggression.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1499\" data-start=\"1423\"\u003e\n\u003cp data-end=\"1499\" data-start=\"1425\"\u003e\u003cstrong data-end=\"1443\" data-start=\"1425\"\u003eH-Pipe Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eImproves scavenging for a fuller, more refined sound.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1583\" data-start=\"1500\"\u003e\n\u003cp data-end=\"1583\" data-start=\"1502\"\u003e\u003cstrong data-end=\"1526\" data-start=\"1502\"\u003eDual-Mode Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRaw and loud (open) or subdued and civilized (closed).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1588\" data-start=\"1585\"\u003e\n\u003ch2 data-end=\"1614\" data-start=\"1590\"\u003e\u003cstrong data-end=\"1612\" data-start=\"1593\"\u003eSound \u0026amp; Control\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1878\" data-start=\"1615\"\u003e\n\u003cli data-end=\"1716\" data-start=\"1615\"\u003e\n\u003cp data-end=\"1716\" data-start=\"1617\"\u003e\u003cstrong data-end=\"1633\" data-start=\"1617\"\u003eValves Open:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAggressive, free-breathing tone with reduced rasp and improved high-rpm clarity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1785\" data-start=\"1717\"\u003e\n\u003cp data-end=\"1785\" data-start=\"1719\"\u003e\u003cstrong data-end=\"1737\" data-start=\"1719\"\u003eValves Closed:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStock-like sound levels for stealthy driving.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1878\" data-start=\"1786\"\u003e\n\u003cp data-end=\"1878\" data-start=\"1788\"\u003e\u003cstrong data-end=\"1817\" data-start=\"1788\"\u003eElectronic Valve Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes standalone controller; OEM integration available.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/LNseyKBqB4c?si=aaey2ZS6ZlNfxtqA\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1916\" data-start=\"1885\"\u003e\u003cstrong data-end=\"1914\" data-start=\"1888\"\u003eConstruction \u0026amp; Options\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2223\" data-start=\"1917\"\u003e\n\u003cli data-end=\"1981\" data-start=\"1917\"\u003e\n\u003cp data-end=\"1981\" data-start=\"1919\"\u003e\u003cstrong data-end=\"1933\" data-start=\"1919\"\u003eMaterials:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-end=\"1961\" data-start=\"1955\"\u003eor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGrade 5 titanium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2057\" data-start=\"1982\"\u003e\n\u003cp data-end=\"2057\" data-start=\"1984\"\u003e\u003cstrong data-end=\"2003\" data-start=\"1984\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–21.7 lb (Stainless) \/ –49.2 lb (Titanium) vs. OEM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2148\" data-start=\"2058\"\u003e\n\u003cp data-end=\"2148\" data-start=\"2060\"\u003e\u003cstrong data-end=\"2078\" data-start=\"2060\"\u003eCraftsmanship:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePrecision TIG welds and fully mandrel-bent tubing for maximum flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2223\" data-start=\"2149\"\u003e\n\u003cp data-end=\"2223\" data-start=\"2151\"\u003e\u003cstrong data-end=\"2160\" data-start=\"2151\"\u003eTips:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMultiple premium finish options to complement your M3 or M4.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2228\" data-start=\"2225\"\u003e\n\u003ch2 data-end=\"2246\" data-start=\"2230\"\u003e\u003cstrong data-end=\"2244\" data-start=\"2233\"\u003eFitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2357\" data-start=\"2247\"\u003e\n\u003cli data-end=\"2277\" data-start=\"2247\"\u003e\n\u003cp data-end=\"2277\" data-start=\"2249\"\u003e\u003cstrong data-end=\"2275\" data-start=\"2249\"\u003e2015–2018 BMW M3 (F80)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2314\" data-start=\"2278\"\u003e\n\u003cp data-end=\"2314\" data-start=\"2280\"\u003e\u003cstrong data-end=\"2312\" data-start=\"2280\"\u003e2015–2020 BMW M4 Coupe (F82)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2357\" data-start=\"2315\"\u003e\n\u003cp data-end=\"2357\" data-start=\"2317\"\u003e\u003cstrong data-end=\"2355\" data-start=\"2317\"\u003e2015–2020 BMW M4 Convertible (F83)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-end=\"2355\" data-start=\"2317\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/M30lYzI0Tq0?si=YJdX74ohtc9Ugdjx\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2391\" data-start=\"2364\"\u003e\u003cstrong data-end=\"2389\" data-start=\"2367\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2683\" data-start=\"2392\"\u003e\n\u003cli data-end=\"2443\" data-start=\"2392\"\u003e\n\u003cp data-end=\"2443\" data-start=\"2394\"\u003eDirect bolt-on; no cutting or welding required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2492\" data-start=\"2444\"\u003e\n\u003cp data-end=\"2492\" data-start=\"2446\"\u003e100% reversible—return to stock at any time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2683\" data-start=\"2493\"\u003e\n\u003cp data-end=\"2683\" data-start=\"2495\"\u003e\u003cem data-end=\"2517\" data-start=\"2495\"\u003eNote for S55 Owners:\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eOn free-flow\/race downpipes, “2k rpm rasp” may be present during low-rpm shifts. For the most refined tone, we recommend high-flow (200 cell) catalytic converters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2688\" data-start=\"2685\"\u003e\n\u003ch2 data-end=\"2714\" data-start=\"2690\"\u003e\u003cstrong data-end=\"2712\" data-start=\"2693\"\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2910\" data-start=\"2715\"\u003e\n\u003cli data-end=\"2756\" data-start=\"2715\"\u003e\n\u003cp data-end=\"2756\" data-start=\"2717\"\u003e2.75\" equal-length H-pipe mid-section\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2801\" data-start=\"2757\"\u003e\n\u003cp data-end=\"2801\" data-start=\"2759\"\u003e3.5\" axle-back with quad-chamber muffler\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2872\" data-start=\"2802\"\u003e\n\u003cp data-end=\"2872\" data-start=\"2804\"\u003eElectronic valve system with controller (OEM integration optional)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2910\" data-start=\"2873\"\u003e\n\u003cp data-end=\"2910\" data-start=\"2875\"\u003eAll necessary clamps and hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/VaFdvNKLGPQ?si=NTiGihorL4ViXjHv\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2940\" data-start=\"2917\"\u003e\u003cstrong data-end=\"2938\" data-start=\"2920\"\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"3280\" data-start=\"2941\"\u003e\n\u003cli data-end=\"3001\" data-start=\"2941\"\u003e\n\u003cp data-end=\"3001\" data-start=\"2943\"\u003e\u003cstrong data-end=\"2968\" data-start=\"2943\"\u003eMid-Section Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.75\" equal-length with H-pipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3034\" data-start=\"3002\"\u003e\n\u003cp data-end=\"3034\" data-start=\"3004\"\u003e\u003cstrong data-end=\"3027\" data-start=\"3004\"\u003eAxle-Back Diameter:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.5\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3093\" data-start=\"3035\"\u003e\n\u003cp data-end=\"3093\" data-start=\"3037\"\u003e\u003cstrong data-end=\"3050\" data-start=\"3037\"\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eT304 stainless steel or Grade 5 titanium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3138\" data-start=\"3094\"\u003e\n\u003cp data-end=\"3138\" data-start=\"3096\"\u003e\u003cstrong data-end=\"3107\" data-start=\"3096\"\u003eValves:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eElectronic, rapid open\/close\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3213\" data-start=\"3139\"\u003e\n\u003cp data-end=\"3213\" data-start=\"3141\"\u003e\u003cstrong data-end=\"3160\" data-start=\"3141\"\u003eWeight Savings:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e–21.7 lb (Stainless) \/ –49.2 lb (Titanium) vs. OEM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3280\" data-start=\"3214\"\u003e\n\u003cp data-end=\"3280\" data-start=\"3216\"\u003e\u003cstrong data-end=\"3227\" data-start=\"3216\"\u003eDesign:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eQuad-chamber muffler for refined closed-valve tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Valvetronics","offers":[{"title":"Stainless Steel \/ (4) Brushed Steel (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657418438,"sku":"BMW.F8X.M3.M4.VSES.BR.BRSH","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Brushed Steel (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657451206,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BRSH","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Burnt (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657483974,"sku":"BMW.F8X.M3.M4.VSES.BR.BRT","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Burnt (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657516742,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BRT","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Black (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657549510,"sku":"BMW.F8X.M3.M4.VSES.BR.BLK","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Black (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657582278,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.BLK","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657615046,"sku":"BMW.F8X.M3.M4.VSES.BR.RC","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) 1x1 Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657647814,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.RC","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657680582,"sku":"BMW.F8X.M3.M4.VSES.BR.FC","price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Forged Carbon Fiber (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657713350,"sku":"BMW.F8X.M3.M4.VSES.400C.BR.FC","price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Raw Titanium (3.5\" Outlet) \/ Full Exhaust","offer_id":45724657746118,"sku":null,"price":4257.69,"currency_code":"AUD","in_stock":true},{"title":"Stainless Steel \/ (4) Raw Titanium (3.5\" Outlet) \/ +400 Cell Catted Downpipes","offer_id":45724657778886,"sku":null,"price":7096.16,"currency_code":"AUD","in_stock":true},{"title":"Grade 5 Titanium \/ (4) Brushed Steel (3.5\" Outlet) \/ Full 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