{"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","url":"https:\/\/www.gridlinecustommotorsports.com.au\/products\/bmw-g8x-m3-m4-valved-sport-exhaust-system-copy","provider":"Gridline Custom Motorsports","version":"1.0","type":"link"}