{"title":"Do88 Performance","description":null,"products":[{"product_id":"do88-intake-manifold-bmw-s58","title":"Do88 Intake Manifold | BMW S58","description":"\u003cp class=\"p1\"\u003eThe \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Charge Cooler Manifold\u003c\/b\u003e\u003c\/span\u003e is a comprehensive intake and charge-air cooling upgrade developed for high-performance BMW S58 applications.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe factory S58 intake manifold integrates the charge cooler directly into its thermoplastic construction. While effective at factory power levels, increased boost, repeated high-load driving and substantial power upgrades can expose limitations in both cooling performance and durability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003edo88 addresses these limitations with an extensively engineered \u003cspan class=\"s1\"\u003e\u003cb\u003ecast-aluminium intake manifold featuring a 127 mm (5”) Bar \u0026amp; Plate air-to-water charge cooler core\u003c\/b\u003e\u003c\/span\u003e, increased airflow, integrated auxiliary port injection provisions and additional ports for advanced engine setups.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eHigh-Performance Bar \u0026amp; Plate Charge Cooler\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eAt the centre of the manifold is a \u003cspan class=\"s1\"\u003e\u003cb\u003e127 mm (5”) thick Bar \u0026amp; Plate air-to-water intercooler core\u003c\/b\u003e\u003c\/span\u003e, designed to improve both charge-air cooling and airflow.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe core is approximately \u003cspan class=\"s1\"\u003e\u003cb\u003e62% larger than the factory unit\u003c\/b\u003e\u003c\/span\u003e, with carefully developed air and water fin configurations designed to balance heat transfer with minimal airflow restriction.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAccording to do88’s testing, the manifold achieved:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e28.5°C intake temperature\u003c\/b\u003e\u003c\/span\u003e, compared with 33°C using the OE charge cooler manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e511 CFM airflow at 0.05 bar \/ 0.73 psi pressure drop\u003c\/b\u003e\u003c\/span\u003e, compared with 422 CFM for the OE manifold\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cspan class=\"s1\"\u003e\u003cb\u003e21% higher airflow\u003c\/b\u003e\u003c\/span\u003e under the stated test conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eCFD-Developed Cast Aluminium Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eRather than simply machining an aluminium replacement for the factory manifold, do88 developed purpose-designed cast end tanks to optimise the distribution of both charge air and cooling water across the core.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eDevelopment included \u003cspan class=\"s1\"\u003e\u003cb\u003e3D scanning, SolidWorks design, Computational Fluid Dynamics (CFD), multiple design iterations and 3D-printed prototypes\u003c\/b\u003e\u003c\/span\u003e before the final design was produced.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe resulting aluminium construction also provides a significantly more robust solution for engines operating at elevated boost pressures compared with the factory thermoplastic manifold.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIntegrated Auxiliary Port Injection\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThe outlet tank is prepared from the factory for \u003cspan class=\"s1\"\u003e\u003cb\u003esix auxiliary port fuel injectors\u003c\/b\u003e\u003c\/span\u003e, making the manifold particularly suitable for higher-power S58 builds requiring additional fuel delivery.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eA custom fuel rail with \u003cspan class=\"s1\"\u003e\u003cb\u003efemale AN-8 connections\u003c\/b\u003e\u003c\/span\u003e is included and is designed for use with compatible injectors including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInjector Dynamics ID1050x-34-14 \/ ID1050x-34-14-14\u003c\/li\u003e\n\u003cli\u003eBosch EV14 short-style injectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eFor vehicles not running port injection, \u003cspan class=\"s1\"\u003e\u003cb\u003einjector blanking plugs are included\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eNitrous \u0026amp; Methanol Injection Ready\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eEach individual cylinder runner incorporates its own \u003cspan class=\"s1\"\u003e\u003cb\u003e1\/8” NPT port\u003c\/b\u003e\u003c\/span\u003e, allowing additional functionality for setups using nitrous or methanol injection.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSealing plugs are supplied for vehicles where these ports are not required.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eAdditional Sensor \u0026amp; Vacuum Ports\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eAn integrated three-port pad is cast into the side of the outlet tank, providing \u003cspan class=\"s1\"\u003e\u003cb\u003ethree additional 1\/8” NPT connections\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThese can be used for additional sensors, data acquisition or as supplementary vacuum sources depending on the vehicle’s configuration.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eSealing plugs are included.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eAdvanced Thermal Management\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eBecause aluminium transfers considerably more heat than the factory plastic manifold, do88 includes a purpose-designed \u003cspan class=\"s1\"\u003e\u003cb\u003ethermal barrier spacer\u003c\/b\u003e\u003c\/span\u003e between the cylinder head and intake manifold.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe spacer helps reduce conductive heat transfer into the manifold, supporting lower intake-air temperatures and reducing heat soak during sustained high-load operation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCustom \u003cspan class=\"s1\"\u003e\u003cb\u003ehigh-specification FKM-silicone O-rings\u003c\/b\u003e\u003c\/span\u003e sit within precision-machined grooves to provide a secure seal between the cylinder head, thermal barrier and manifold.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eA total of \u003cspan class=\"s1\"\u003e\u003cb\u003e12 custom O-rings\u003c\/b\u003e\u003c\/span\u003e are supplied.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e127 mm \/ 5” Bar \u0026amp; Plate air-to-water charge cooler core\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eApproximately \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e62% larger core than OE\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eCast-aluminium intake manifold construction\u003c\/li\u003e\n\u003cli\u003eCFD-developed airflow and coolant distribution\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e511 CFM\u003c\/b\u003e\u003c\/span\u003e at 0.05 bar \/ 0.73 psi pressure drop in do88 testing\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cspan class=\"s1\"\u003e\u003cb\u003e21% greater airflow than OE\u003c\/b\u003e\u003c\/span\u003e under the stated test conditions\u003c\/li\u003e\n\u003cli\u003eIntegrated auxiliary port injection provisions\u003c\/li\u003e\n\u003cli\u003eCustom fuel rail with female AN-8 connections included\u003c\/li\u003e\n\u003cli\u003eInjector blanking plugs included\u003c\/li\u003e\n\u003cli\u003eSix individual \u003cspan class=\"s1\"\u003e\u003cb\u003e1\/8” NPT runner ports\u003c\/b\u003e\u003c\/span\u003e for nitrous or methanol injection\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eThree additional \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e1\/8” NPT sensor\/vacuum ports\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eThermal barrier spacer included\u003c\/li\u003e\n\u003cli\u003e12 custom FKM-silicone sealing O-rings included\u003c\/li\u003e\n\u003cli\u003eRetains convenient access to the spin-on oil filter for servicing\u003c\/li\u003e\n\u003cli\u003eRequired mounting brackets and associated installation hardware included\u003c\/li\u003e\n\u003cli\u003ePlug-and-play design for compatible applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p3\"\u003eDesigned for compatible \u003cspan class=\"s1\"\u003e\u003cb\u003eBMW S58-powered G8X applications\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW G87 M2\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 \/ M3 Competition\u003c\/li\u003e\n\u003cli\u003eBMW G81 M3 Touring \/ M3 Competition Touring\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 \/ M4 Competition\u003c\/li\u003e\n\u003cli\u003eBMW G83 M4 Convertible \/ M4 Competition Convertible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eVehicle specification and existing modifications should be confirmed before ordering.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\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 class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\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":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47148023152838,"sku":null,"price":4400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/ICM-450-K_1_jpg.webp?v=1788747241"},{"product_id":"do88-front-intercooler-radiator-bmw-g8x-m2-m3-m4","title":"do88 Front Intercooler Radiator | BMW G8X M2 M3 M4","description":"\u003cp class=\"p1\"\u003eImprove the cooling performance and consistency of your S58-powered BMW with the \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Front Intercooler Radiator\u003c\/b\u003e\u003c\/span\u003e, engineered to increase the efficiency of the factory water-to-air charge cooling system under demanding driving conditions.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eDesigned for the BMW G8X platform, the do88 radiator increases cooling capacity, coolant volume and heat dissipation while retaining a direct-fit installation using the vehicle’s factory mounting locations.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImproved S58 Charge Air Cooling\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe BMW S58 uses a water-to-air charge cooling system, with coolant circulating between the charge cooler and a front-mounted heat exchanger.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAs power levels and sustained engine loads increase, the factory cooling system can become susceptible to heat soak. Rising intake air temperatures can reduce performance consistency as the ECU compensates for excessive temperatures.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe do88 Front Intercooler Radiator has been developed to provide significantly greater cooling capacity, making it particularly suited to tuned, high-performance and track-driven S58 vehicles.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eQuad-Pass Cooling Design\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eUnlike the factory radiator’s two-pass arrangement, the do88 radiator features a \u003cspan class=\"s1\"\u003e\u003cb\u003equad-pass coolant flow design\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis routes coolant through the core four times, increasing its contact with the available cooling surface and improving heat transfer before the coolant returns to the charge cooling system.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCombined with the larger core, this provides substantially greater thermal capacity for demanding applications.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eLarger High-Performance Core\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 radiator features a \u003cspan class=\"s1\"\u003e\u003cb\u003e39% larger core volume than the factory unit\u003c\/b\u003e\u003c\/span\u003e, together with a 48 mm thick two-row core.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eExternal tube area is increased by approximately \u003cspan class=\"s1\"\u003e\u003cb\u003e9%\u003c\/b\u003e\u003c\/span\u003e, providing additional active cooling surface while carefully designed cooling fins maintain airflow through to the engine radiator positioned behind it.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eFull Aluminium Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe factory plastic components are replaced with a robust \u003cspan class=\"s1\"\u003e\u003cb\u003eall-aluminium construction\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe radiator incorporates aluminium end tanks, core and CNC-machined connections, with the assembly TIG welded for improved strength and durability.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis construction is particularly beneficial for modified vehicles operating under increased thermal and performance demands.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e39% larger core volume\u003c\/b\u003e\u003c\/span\u003e compared with the factory radiator\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e48 mm thick two-row core\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eApproximately \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e9% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eQuad-pass coolant flow design\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased 5 mm cooling fin height\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eFull aluminium construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eTIG-welded aluminium end tanks\u003c\/li\u003e\n\u003cli\u003eCNC-machined connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eApproximately \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e1.4 litres additional coolant capacity\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreased heat dissipation capability\u003c\/li\u003e\n\u003cli\u003eDesigned to reduce charge cooling system heat soak\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eCompatible with \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003emanual and automatic transmission vehicles\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes custom rock guards for protection against road debris\u003c\/li\u003e\n\u003cli\u003eDesigned for straightforward installation using factory mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p3\"\u003eDesigned for \u003cspan class=\"s1\"\u003e\u003cb\u003e2021+ BMW G8X S58 applications\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M2 G87\u003c\/li\u003e\n\u003cli\u003eBMW M3 G80\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring G81\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible G83\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eAlways confirm compatibility with your specific vehicle before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\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 class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\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":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47154739052742,"sku":"WC-430","price":1219.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/WC-430_1_jpg.webp?v=1788827190"},{"product_id":"do88-auxiliary-radiators-bmw-g8x-m2-m3-m4","title":"do88 Auxiliary Radiators | BMW G8X M2 M3 M4","description":"\u003cp class=\"p1\"\u003eImprove engine cooling performance on your S58-powered BMW with the \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Performance Auxiliary Radiators\u003c\/b\u003e\u003c\/span\u003e, designed to provide increased cooling capacity for tuned, high-performance and track-driven G8X vehicles.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe kit replaces both factory auxiliary radiators with larger, full-aluminium units featuring increased core volume, greater active cooling area and a direct-fit design.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImproved S58 Engine Cooling\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe BMW S58 cooling system uses three front-mounted engine coolant radiators: one large central radiator supported by two smaller auxiliary radiators positioned ahead of the front wheels.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAs engine output increases, so does the amount of heat the cooling system must manage. During demanding street driving, track use or other sustained high-load conditions, maintaining consistent coolant temperatures becomes increasingly important.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe factory auxiliary radiators utilise relatively slim cores and plastic end tanks. The do88 replacements have been developed to significantly increase cooling capacity while maintaining compatibility with the factory cooling system.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e43% Larger Core Volume\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eTaking advantage of the available space within the G8X front cooling package, do88 has increased both the frontal surface area and thickness of the auxiliary radiator cores.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eEach radiator uses a \u003cspan class=\"s1\"\u003e\u003cb\u003e48 mm thick, two-row core\u003c\/b\u003e\u003c\/span\u003e, resulting in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e43% greater core volume\u003c\/b\u003e\u003c\/span\u003e compared with the factory radiator\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e13% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased coolant capacity\u003c\/li\u003e\n\u003cli\u003eImproved heat dissipation under sustained load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThe increased cooling capacity makes these radiators particularly suited to tuned S58 applications where the factory cooling system is subjected to greater thermal loads.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eFull Aluminium Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe factory plastic end tanks are replaced with a robust \u003cspan class=\"s1\"\u003e\u003cb\u003efull-aluminium design\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEach radiator features TIG-welded aluminium end tanks together with CNC-machined mounting hardware and connections, providing increased durability for high-performance applications.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDirect-Fit Installation\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 Performance Auxiliary Radiators are engineered as direct replacements for the factory units.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThey feature \u003cspan class=\"s1\"\u003e\u003cb\u003eOE-style Quick Connect inlet and outlet connections\u003c\/b\u003e\u003c\/span\u003e, together with CNC-machined mounting brackets for straightforward installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe original BMW rock guards can also be retained, helping protect the upgraded radiator cores from stones and road debris.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBoth left and right radiators are included, allowing the cooling system to be upgraded evenly rather than replacing only one side.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eSupplied as a \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003epair – left and right auxiliary radiators\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e43% larger core volume\u003c\/b\u003e\u003c\/span\u003e than the factory radiators\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e48 mm thick two-row cores\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e13% increased active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased coolant capacity\u003c\/li\u003e\n\u003cli\u003eImproved heat dissipation\u003c\/li\u003e\n\u003cli\u003eFull aluminium construction\u003c\/li\u003e\n\u003cli\u003eTIG-welded aluminium end tanks\u003c\/li\u003e\n\u003cli\u003eCNC-machined mounting brackets\u003c\/li\u003e\n\u003cli\u003eOE-style Quick Connect coolant connections\u003c\/li\u003e\n\u003cli\u003eCompatible with factory BMW rock guards\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the factory auxiliary radiators\u003c\/li\u003e\n\u003cli\u003eDesigned for tuned and high-performance S58 applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p3\"\u003eDesigned for \u003cspan class=\"s1\"\u003e\u003cb\u003e2021+ BMW G8X S58 applications\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M2 G87\u003c\/li\u003e\n\u003cli\u003eBMW M3 G80\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring G81\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible G83\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eAlways confirm compatibility with your specific vehicle before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\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 class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\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":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47154754977990,"sku":"WC-440","price":929.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/WC-440_1_jpg.webp?v=1788828057"},{"product_id":"do88-engine-oil-cooler-bmw-g8x-m2-m3-m4-s58","title":"do88 Engine Oil Cooler | BMW G8X M2 M3 M4 S58","description":"\u003cp class=\"p1\"\u003eImprove oil cooling performance and durability on your S58-powered BMW with the \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Engine Oil Cooler\u003c\/b\u003e\u003c\/span\u003e, developed as a stronger and more efficient replacement for the factory unit.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eMounted low beneath the front central radiators, the factory S58 oil cooler is exposed to road debris and stone impacts. Its Tube \u0026amp; Fin construction can be vulnerable to physical damage, which may lead to oil leaks and potentially serious engine damage.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe do88 solution replaces the factory design with a more robust \u003cspan class=\"s1\"\u003e\u003cb\u003eBar \u0026amp; Plate core\u003c\/b\u003e\u003c\/span\u003e, TIG-welded aluminium tanks and increased cooling capacity for demanding street, track and high-performance applications.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eStronger Bar \u0026amp; Plate Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eTo improve both cooling performance and durability, do88 replaces the factory Tube \u0026amp; Fin core with a more robust \u003cspan class=\"s1\"\u003e\u003cb\u003eBar \u0026amp; Plate design\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis construction is better suited to the exposed position of the oil cooler and provides improved resistance to stone chips and road debris.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCombined with TIG-welded aluminium end tanks, the do88 cooler offers a significantly more durable solution for vehicles subjected to demanding conditions.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIncreased Cooling Capacity\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 Engine Oil Cooler has been designed to provide greater thermal capacity than the factory unit.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eCompared with OE, it features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e57% greater core volume\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e14% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased heat dissipation capability\u003c\/li\u003e\n\u003cli\u003eImproved oil temperature control under sustained load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThis makes the cooler particularly suitable for tuned S58 vehicles where oil temperatures can increase significantly during repeated high-load operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003ePrecision-Developed Fitment\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003edo88 developed the cooler using a detailed \u003cspan class=\"s1\"\u003e\u003cb\u003e3D scan of the factory mounting area\u003c\/b\u003e\u003c\/span\u003e, allowing the upgraded unit to maximise available space while maintaining straightforward installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe result is a \u003cspan class=\"s1\"\u003e\u003cb\u003edrop-in replacement\u003c\/b\u003e\u003c\/span\u003e designed to fit without requiring modification to the vehicle.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e57% larger core volume\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e compared with OE\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e14% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBar \u0026amp; Plate core construction\u003c\/li\u003e\n\u003cli\u003eIncreased resistance to road debris and stone impact\u003c\/li\u003e\n\u003cli\u003eTIG-welded aluminium end tanks\u003c\/li\u003e\n\u003cli\u003eImproved oil cooling capability\u003c\/li\u003e\n\u003cli\u003eDesigned for sustained high-load use\u003c\/li\u003e\n\u003cli\u003eDeveloped using 3D scanning\u003c\/li\u003e\n\u003cli\u003eDirect-fit installation\u003c\/li\u003e\n\u003cli\u003eNo vehicle modification required\u003c\/li\u003e\n\u003cli\u003eSuitable for tuned, track and high-performance applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p3\"\u003eDesigned for \u003cspan class=\"s1\"\u003e\u003cb\u003e2021+ BMW G8X S58 applications\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M2 G87\u003c\/li\u003e\n\u003cli\u003eBMW M3 G80\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring G81\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible G83\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eAlways confirm compatibility with your specific vehicle before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\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 class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\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":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47155378618566,"sku":"OC-200","price":1219.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/OC-200_1_jpg.webp?v=1788834540"},{"product_id":"do88-transmission-cooler-bmw-g8x-m2-m3-m4-zf8","title":"do88 Transmission Cooler | BMW G8X M2 M3 M4 ZF8","description":"\u003cp class=\"p1\"\u003eImprove transmission cooling performance on your S58-powered BMW with the \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Performance Transmission Cooler\u003c\/b\u003e\u003c\/span\u003e, developed for demanding street, track and high-performance applications.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe ZF 8HP automatic transmission used in the G8X platform is highly capable, but increased engine output and sustained high-load driving can place additional thermal stress on the factory cooling system. Excessive transmission temperature can affect shift performance and, if left unmanaged, may contribute to accelerated wear.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe do88 Transmission Cooler has been engineered to significantly increase cooling capacity while maintaining straightforward installation and factory-style connections.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIncreased Cooling Capacity\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe upgraded do88 cooler features a substantially larger core than the factory unit, increasing both oil capacity and available heat-transfer area.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eCompared with OE, do88 states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e71% greater core volume\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e50% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eApproximately \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e42% greater oil capacity\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreased oil volume from approximately \u003cspan class=\"s1\"\u003e\u003cb\u003e0.6 L to 0.85 L\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThis additional capacity helps improve heat dissipation during repeated high-load operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDual-Pass Cooling Design\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 Transmission Cooler uses a \u003cspan class=\"s1\"\u003e\u003cb\u003edual-pass internal flow configuration\u003c\/b\u003e\u003c\/span\u003e, keeping transmission fluid within the cooler for a longer period before returning through the system.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis increases the fluid’s contact with the cooling surface and improves the cooler’s ability to reject heat under demanding conditions.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eHarmonica Tube Core Design\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe upgraded core incorporates \u003cspan class=\"s1\"\u003e\u003cb\u003eharmonica-style tubes with internal channels\u003c\/b\u003e\u003c\/span\u003e, increasing internal surface area and promoting more effective heat transfer.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis design allows the cooler to deliver greater cooling performance while maintaining similar oil pressure characteristics to the factory system.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDirect-Fit Installation\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 Transmission Cooler has been designed as a \u003cspan class=\"s1\"\u003e\u003cb\u003edrop-in replacement\u003c\/b\u003e\u003c\/span\u003e for the factory cooler.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eIt includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM-style Quick Connect inlet and outlet connections\u003c\/li\u003e\n\u003cli\u003eDirect-fit mounting\u003c\/li\u003e\n\u003cli\u003eNo vehicle modification required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThis allows the upgraded cooler to integrate cleanly with the factory transmission cooling system.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e71% larger core volume\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e than OE\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e50% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eApproximately \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e42% greater transmission fluid capacity\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncreased oil volume from approximately 0.6 L to 0.85 L\u003c\/li\u003e\n\u003cli\u003eDual-pass coolant\/oil flow design\u003c\/li\u003e\n\u003cli\u003eHarmonica-style internal cooling tubes\u003c\/li\u003e\n\u003cli\u003eIncreased heat-transfer surface area\u003c\/li\u003e\n\u003cli\u003eDesigned to maintain similar oil pressure characteristics\u003c\/li\u003e\n\u003cli\u003eOEM-style Quick Connect fittings\u003c\/li\u003e\n\u003cli\u003eDirect-fit installation\u003c\/li\u003e\n\u003cli\u003eNo vehicle modification required\u003c\/li\u003e\n\u003cli\u003eDesigned for tuned and high-performance applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p3\"\u003eDesigned for \u003cspan class=\"s1\"\u003e\u003cb\u003e2021+ BMW G8X models equipped with the ZF 8HP automatic transmission\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M2 G87\u003c\/li\u003e\n\u003cli\u003eBMW M3 G80\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring G81\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible G83\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for \u003cspan class=\"s1\"\u003e\u003cb\u003eautomatic transmission vehicles only\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAlways confirm compatibility with your specific vehicle before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\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 class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\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":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47155443531974,"sku":"OC-210","price":1049.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/OC-210_1_jpg.webp?v=1788835698"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/collections\/Do88.png?v=1788742494","url":"https:\/\/www.gridlinecustommotorsports.com.au\/collections\/do88-performance.oembed","provider":"Gridline Custom Motorsports","version":"1.0","type":"link"}