{"product_id":"kyostar-ss304-tuning-exhaust-system-muffler-car-valve-valvetronic-exhaust-for-bmw-g82-m4-g80-m3-exhaust-pipes","title":"KYOSTAR SS304 Valved Catback Exhaust System for 2021+ BMW G80 M3 G82 G83 M4 S58 3.0T","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR SS304 Valved Catback Exhaust System for BMW G80 M3 G82 G83 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 SS304 Valved Catback Exhaust System, engineered specifically for G80 M3 and G82\/G83 M4 models equipped with the S58 3.0T Twin Turbo inline-six engine. Built from premium SS304 stainless steel, this exhaust system improves exhaust flow efficiency, reduces backpressure, and delivers a more aggressive performance exhaust tone while maintaining excellent daily drivability.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFeaturing precision TIG welding, optimized exhaust routing, and electronic valve control compatibility, the KYOSTAR valved catback exhaust allows drivers to switch between a refined cruising sound and a louder, more aggressive exhaust character. Designed with factory-style fitment, this system provides a clean installation solution for BMW S58 street builds, tuned applications, and performance enthusiasts.\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\u003ePremium SS304 stainless steel construction provides excellent durability, corrosion resistance, and heat resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eElectronic valve-controlled design allows adjustable exhaust sound for daily driving and performance use.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eOptimized exhaust tubing layout helps improve exhaust flow and reduce factory exhaust restriction.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePrecision TIG welding improves structural strength and long-term reliability under high-temperature conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eFactory-style valve compatibility maintains convenient exhaust sound control without sacrificing drivability.\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 G80 M3 Competition S58 3.0T Twin Turbo\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e2021+ BMW G80 M3 Competition xDrive 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\u003e2021+ BMW G82 M4 Competition S58 3.0T Twin Turbo\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e2021+ BMW G83 M4 Convertible S58 3.0T Twin Turbo\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e2021+ BMW G83 M4 Competition xDrive S58 3.0T Twin Turbo\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\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003eCompatible with BMW S58 3.0T Twin Turbo L6 engine applications only.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eNot compatible with S55, N55, B58, or other BMW engine platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePlease verify your vehicle chassis code, production year, factory exhaust configuration, and valve connection before purchase.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eDesigned for vehicles equipped with factory electronic exhaust valve control.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nVehicle exhaust configurations may vary depending on production date, regional emissions equipment (OPF\/GPF), Competition package, and previous aftermarket exhaust modifications. Please compare your factory exhaust layout, valve wiring, flange connections, and mounting points with the product photos before installation.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Proper installation, exhaust alignment, and valve connection inspection are required to ensure leak-free operation and optimal exhaust performance.\n\u003c\/p\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 style=\"width: 100%; border-collapse: collapse;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\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\u003eKD5S006PD\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eValved Catback Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eBMW G80 M3 \/ G82 G83 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 L6\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eG80 \/ G82 \/ G83\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBMW S58 Performance Exhaust Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSS304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eExhaust Type\u003c\/td\u003e\n\u003ctd\u003eValved Catback Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eValve Type\u003c\/td\u003e\n\u003ctd\u003eElectronic Valves Compatible with Factory Valve Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eWelding\u003c\/td\u003e\n\u003ctd\u003eHigh Precision TIG Welding\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBenefits\u003c\/td\u003e\n\u003ctd\u003eImproved Exhaust Flow, Reduced Backpressure, Enhanced Turbo Response, Aggressive Exhaust Tone\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eCatback Exhaust Pipes, Mufflers, Valves, Clamps, Installation Hardware\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\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 exhaust fit?\u003c\/strong\u003e\u003cbr\u003e\nA: This valved catback exhaust system is designed for BMW G80 M3, G82 M4, and G83 M4 models equipped with the S58 3.0T Twin Turbo engine.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Does this exhaust support factory valve control?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The system is designed to work with factory electronic exhaust valve control for adjustable sound levels.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is SS304 stainless steel suitable for performance exhaust systems?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. SS304 stainless steel provides excellent corrosion resistance, durability, and heat tolerance for long-term performance use.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Will this exhaust be loud during daily driving?\u003c\/strong\u003e\u003cbr\u003e\nA: The valve-controlled design allows quieter operation during normal driving and a more aggressive exhaust tone when the valves open.\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 correct alignment, valve operation, and proper exhaust sealing.\n\u003c\/p\u003e\n\n\u003c\/div\u003e\n  ","brand":"My Store","offers":[{"title":"Ships from U.S. Warehouse","offer_id":53786442432785,"sku":"KD5S006PD","price":1442.0,"currency_code":"USD","in_stock":true},{"title":"Factory Direct Shipping","offer_id":53786442465553,"sku":"KD5S006PD","price":1422.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/7361\/5889\/files\/KD5S006PD_4.jpg?v=1739002056","url":"https:\/\/www.kyostars.com\/de\/products\/kyostar-ss304-tuning-exhaust-system-muffler-car-valve-valvetronic-exhaust-for-bmw-g82-m4-g80-m3-exhaust-pipes","provider":"KYOSTAR PERFORMANCE","version":"1.0","type":"link"}