{"product_id":"kyostar-ss304-stainless-steel-racing-exhaust-downpipe-for-2020-bmwg80-m3-g82-m4-s58-downpipe","title":"KYOSTAR 304 Stainless Steel Downpipe for 2021+ BMW G80 M3 G82 M4 S58 3.0T","description":"\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR 304 Stainless Steel Downpipe for 2021+ BMW G80 M3 G82 M4 S58 3.0T\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nUpgrade your BMW M performance platform with the KYOSTAR 304 Stainless Steel Downpipe, engineered specifically for 2021+ BMW G80 M3 and G82 M4 models equipped with the S58 3.0T twin-turbo engine. This high-flow downpipe improves exhaust gas flow by reducing factory exhaust restriction while delivering a more aggressive exhaust tone and supporting improved turbocharger efficiency.\n\u003c\/p\u003e\n\n\u003cp\u003e\nManufactured from premium 304 stainless steel, the KYOSTAR downpipe provides excellent heat resistance, corrosion protection, and long-term durability for high-performance applications. The optimized exhaust design helps improve exhaust flow characteristics, making it an ideal upgrade for S58-powered BMW builds seeking enhanced sound, improved exhaust response, and increased performance potential.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003eHigh-flow downpipe design helps reduce factory exhaust restriction and improve exhaust gas flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e304 stainless steel construction provides excellent durability, corrosion resistance, and heat tolerance.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePerformance-oriented design supports improved turbocharger exhaust efficiency and response.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eDesigned specifically for BMW S58 3.0T twin-turbo M applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eProvides a deeper and more aggressive exhaust tone compared with the factory setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003e2021+ BMW G80 M3 S58 3.0T Twin-Turbo\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e2021+ BMW G82 M4 S58 3.0T Twin-Turbo\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eBMW G80 M3 Competition S58 3.0T\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eBMW G82 M4 Competition S58 3.0T\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nCompatible engine: BMW S58 3.0T Twin-Turbo Inline-6 engine applications only.\u003cbr\u003e\nIncompatible engine: Not compatible with standard 3 Series, 4 Series, B48, B58, N55, diesel, naturally aspirated, or other engine platforms.\u003cbr\u003e\nVerify chassis: Confirm your BMW chassis code, engine code, and exhaust configuration before purchase.\u003cbr\u003e\nVerify connection: Check turbo outlet connections, exhaust routing, and existing modifications before installation.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003cbr\u003e\nVehicle exhaust configurations may vary depending on production year, market specification, Competition package, and previous modifications. Please compare your factory downpipe connections, mounting points, and exhaust layout with the product photos before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Ensure all exhaust connections, clamps, gaskets, and mounting hardware are properly secured after installation.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003e304 Stainless Steel Downpipes\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eExhaust Clamps\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eMounting Hardware\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eGaskets (if included)\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKYOSTAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eKD5S011WG\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel Downpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003e2021+ BMW G80 M3 \/ G82 M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eS58 3.0T Twin-Turbo Inline-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eG80 \/ G82\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBMW S58 Turbo Exhaust Performance Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBenefits\u003c\/td\u003e\n\u003ctd\u003eImproved Exhaust Flow, Reduced Exhaust Restriction, Enhanced Exhaust Tone, Better Turbo Response\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePolished Stainless Steel Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eExhaust Type\u003c\/td\u003e\n\u003ctd\u003eHigh Flow Performance Downpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eDirect Bolt-On Exhaust Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eDownpipes, Clamps, Mounting Hardware, and Gaskets if Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: What BMW models does this downpipe fit?\u003c\/strong\u003e\u003cbr\u003e\nA: This downpipe is designed for 2021+ BMW G80 M3 and G82 M4 models equipped with the S58 3.0T twin-turbo engine.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is this compatible with BMW B58 or N55 engines?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This downpipe is specifically designed for S58-powered BMW M models and is not compatible with B58, N55, or other engine platforms.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Will this improve exhaust sound?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The high-flow design helps reduce exhaust restriction and provides a more aggressive performance exhaust tone.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Does this require ECU tuning?\u003c\/strong\u003e\u003cbr\u003e\nA: ECU tuning is not required for installation. However, tuning may help optimize performance when combined with additional modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Professional installation is recommended to ensure proper fitment, sealing, and safe exhaust operation.\n\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Ships from U.S. Warehouse","offer_id":53806379958545,"sku":"KD5S011WG-1","price":273.0,"currency_code":"USD","in_stock":true},{"title":"Factory Direct Shipping","offer_id":53806379991313,"sku":"KD5S011WG-2","price":293.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/7361\/5889\/files\/KD5S011WG_1.jpg?v=1739003343","url":"https:\/\/www.kyostars.com\/de\/products\/kyostar-ss304-stainless-steel-racing-exhaust-downpipe-for-2020-bmwg80-m3-g82-m4-s58-downpipe","provider":"KYOSTAR PERFORMANCE","version":"1.0","type":"link"}