{"title":"BMW G81 Performance Parts","description":"\u003cp\u003eShop performance parts for BMW the G81 chassis. Every part on this page is matched to the chassis and engine code and checked against BMW factory parts data, so you are not guessing on fitment. You will find intakes, exhaust, cooling, suspension and brakes from brands like aFe and more, all at MAP pricing. Stock and pricing sync daily from our distributors, and orders ship fast from SPEEDhaus Parts, run by the BMW and Euro specialists at SPEEDhaus in Edmond, Oklahoma.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWill these parts fit my G81?\u003c\/strong\u003e Each listing names the chassis, engine code and model years. If your car is a different chassis or engine, use the part finder at the top of the site.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these parts street legal in California?\u003c\/strong\u003e Some exhaust and intake parts are for off-road or racing use only and are marked on the listing. Those parts do not ship to CARB states.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot sure which upgrade to start with?\u003c\/strong\u003e Contact SPEEDhaus and our BMW techs will help you pick parts for your G81 and your goals.\u003c\/p\u003e","products":[{"product_id":"akrapovic-rear-bumper-diffuser-for-bmw-g80-g81-g82-g83-m3-m4-di-bm-ca-9-cf","title":"Akrapovic Chopped Carbon Rear Diffuser for BMW G80\/G81\/G82\/G83 M3 M4 S58 Twin Turbo (2021-2026) - DI-BM\/CA\/9\/CF","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Akrapovic BMW M3 (G80 \/ G81) \/ M4 (G82 \/ G83) Rear Chopped Carbon Fiber Diffuser - Matte. Performance upgrade.\u003c\/p\u003e\u003cp\u003eFor extra visual impact, there is the option to add a hand-crafted chopped carbon fibre diffuser. Produced in-house, this lightweight accessory – with ABE type approval – is designed to show off the tailpipes of The Akrapovic exhaust at their absolute best.This product fits on xDrive, CSL, LCI and M4 (G83) Competition models.\u003c\/p\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3, M4\u003c\/td\u003e\n\u003ctd\u003eG80, G81, G82, G83\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Akrapovic   \u003cstrong\u003eMPN:\u003c\/strong\u003e DI-BM\/CA\/9\/CF   \u003cstrong\u003eUPC:\u003c\/strong\u003e 3831126429201\u003c\/p\u003e\u003cp\u003eFits turbo BMW engines in the listed models.\u003c\/p\u003e\u003cp class=\"sh-carb\"\u003e\u003cstrong\u003eNot legal for sale or use in California or on any pollution-controlled vehicle. Off-road \/ racing use only. Not sold or shipped to California addresses.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Akrapovic","offers":[{"title":"Default Title","offer_id":67835550630103,"sku":"DI-BM\/CA\/9\/CF","price":2369.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/2d4c1b3b0341eaa9094b4c15da5598e9L.png?v=1792582611"},{"product_id":"akrapovic-exhaust-for-bmw-g80-g81-g82-g83-m3-m4-p-hf1383","title":"Akrapovic Sound Control Kit for BMW G80\/G81\/G82\/G83 M3 M4 S58 Twin Turbo (2021-2026) - P-HF1383","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Akrapovic BMW M3\/M4 (G80\/G81\/G82\/G83) Sound Control Kit. Performance upgrade.\u003c\/p\u003e\u003cp\u003eAkrapovic BMW M3\/M4 (G80\/G81\/G82\/G83) Sound Control Kit\u003c\/p\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3, M4\u003c\/td\u003e\n\u003ctd\u003eG80, G81, G82, G83\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Akrapovic   \u003cstrong\u003eMPN:\u003c\/strong\u003e P-HF1383\u003c\/p\u003e\u003cp\u003eFits turbo BMW engines in the listed models.\u003c\/p\u003e\u003cp class=\"sh-carb\"\u003e\u003cstrong\u003eNot legal for sale or use in California or on any pollution-controlled vehicle. Off-road \/ racing use only. Not sold or shipped to California addresses.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Akrapovic","offers":[{"title":"Default Title","offer_id":67835561443543,"sku":"P-HF1383","price":621.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/cd62b4328423e2375839407827969b33L.png?v=1792582683"},{"product_id":"ast-coilovers-for-bmw-g80-g82-g83-g87-g81-m3-m4-m2-riv-b2112sd","title":"AST 5200 Coilovers for BMW G80\/G82\/G83 M3 M4 (2021-2026) and G87 M2 (2023-2026) RWD S58 Turbo - RIV-B2112SD","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e AST BMW G80\/G82\/G83\/G87 RWD\/G81 M3\/M4\/M2\/M3 Touring\/M4 Convertible 5200 Series Coilovers. Performance upgrade.\u003c\/p\u003e\u003cp\u003eYou take performance seriously - and the AST 2-WAY Motorsport Suspension is built for drivers like you. Designed for true track enthusiasts, it delivers race-level precision and control. \nThis monotube coilover system is 2-way adjustable for rebound, compression, and ride height, featuring external reservoirs for maximum consistency under extreme conditions. It includes camber-adjustable front top mounts, solid rear mounts, and adjustable-rate springs. Fully rebuildable and made in the Netherlands, it’s built to last. Fine-tune your setup with independent rebound and compression adjustments to reduce body roll, sharpen responsiveness, and enhance traction - all while maintaining the perfect balance between performance and comfort.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eThese dampers can adjust in rebound (return to extension) and compression adjustment (moves inwards) when the vehicle encounters changing circumstances on the road or track. Including external reservoirs.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3, M4, M2\u003c\/td\u003e\n\u003ctd\u003eG80, G82, G83, G87, G81\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003ctd\u003eTouring, Convertible\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e AST   \u003cstrong\u003eMPN:\u003c\/strong\u003e RIV-B2112SD\u003c\/p\u003e\u003cp\u003eFits turbo (twin turbo) BMW engines in the listed models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEmissions: suspension part with no emissions impact. No CARB EO number needed.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AST","offers":[{"title":"Default Title","offer_id":67836491890903,"sku":"RIV-B2112SD","price":7713.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/434ce0831091ad6b429a7900e82cba39.jpg?v=1792589273"},{"product_id":"ast-coilovers-for-bmw-g80-g81-g82-g83-m3-m4-xdrive-acu-b2114sd","title":"AST 5100 Coilovers for BMW G80\/G82\/G83 M3 M4 xDrive S58 Turbo (2022-2026) - ACU-B2114SD","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e AST BMW G80-G81 M3 G82-G83 M4 AWD \/ G81 M3 X-drive 2021- 5100 STREET Coilovers (rr non coilover). Performance upgrade.\u003c\/p\u003e\u003cp\u003eLooking for the perfect road balance for everyday driving? The 5100 Street Suspension delivers comfort, control, and confidence in every corner. This monotube coilover system is 1-way adjustable for rebound and ride height, allowing you to fine-tune your setup for maximum grip and stability. It comes with vehicle-specific spring rates, OEM-compatible top mounts, and rebuildable dampers for long-lasting performance. Proudly made in the Netherlands, the 5100 STREET Suspension offers the ideal blend of everyday comfort and precise handling - engineered for drivers who want performance without compromise.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMonotube dampers offer a large piston to control the adjustability of rebound damping. These dampers can adjust in rebound (return to extension). Front dampers utilize a coilover design, the rear is a divorced setup like OEM.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3, M4\u003c\/td\u003e\n\u003ctd\u003eG80, G81, G82, G83\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003exDrive\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e AST   \u003cstrong\u003eMPN:\u003c\/strong\u003e ACU-B2114SD\u003c\/p\u003e\u003cp\u003eFits turbo (twin turbo) BMW engines in the listed models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEmissions: suspension part with no emissions impact. No CARB EO number needed.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AST","offers":[{"title":"Default Title","offer_id":67836491989207,"sku":"ACU-B2114SD","price":3834.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/9e4ae0d1ffbd76bcb8748755cc6e4a8c_17976f7a-a54b-4955-a83a-362494cde7ae.jpg?v=1792589276"},{"product_id":"ast-coilovers-for-bmw-g87-g80-g81-g82-g83-m2-m3-m4-astals-21-004","title":"AST Adjustable Lowering Springs for BMW G80\/G82\/G83 M3 M4 and G87 M2 S58 Turbo (2021-2026) - ASTALS-21-004","description":"\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e AST BMW G87 M2 \/ G80 M3 \/ G81 \/G82 M4 \/ G83 M4 Adjustable Lowering Springs - 20-46mm Fr \/ 10-36mm Rr. Performance upgrade.\u003c\/p\u003e\u003cp\u003eThe AST Adjustable Lowering Springs let you fine-tune your ride height even after installation, offering unmatched flexibility. These vehicle-specific springs lower your car’s center of gravity while keeping the comfort of OEM springs. Crafted from premium materials on advanced Wafios coiling machines, their progressive design balances a lowered stance with improved performance. Designed as a direct OEM replacement and made in the Netherlands, these springs deliver precision, quality, and the perfect mix of comfort and performance.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSet of AST height adjustable Lowering Springs. With this set of Lowering Springs, you’re not limited to a fixed lowering range.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eDrivetrain\u003c\/th\u003e\n\u003cth\u003eBody\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2, M3, M4\u003c\/td\u003e\n\u003ctd\u003eG87, G80, G81, G82, G83\u003c\/td\u003e\n\u003ctd\u003e- (turbo)\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e AST   \u003cstrong\u003eMPN:\u003c\/strong\u003e ASTALS-21-004\u003c\/p\u003e\u003cp\u003eFits turbo (twin turbo) BMW engines in the listed models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEmissions: suspension part with no emissions impact. No CARB EO number needed.\u003c\/strong\u003e\u003c\/p\u003e","brand":"AST","offers":[{"title":"Default Title","offer_id":67836495102167,"sku":"ASTALS-21-004","price":1165.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0852\/0355\/0423\/files\/1e11bd38f5603da99e8ea286b54dfcfeL.png?v=1792589289"}],"url":"https:\/\/speedhausparts.com\/collections\/bmw-g81-performance-parts.oembed","provider":"SPEEDhaus Parts","version":"1.0","type":"link"}