{"product_id":"kyostar-equal-length-valved-catback-exhaust-system-for-2014-2020-bmw-f80-m3-f82-f83-m4-s55-3-0l-twin-turbo","title":"KYOSTAR Equal Length Valved Catback Exhaust System for 2014-2020 BMW F80 M3 F82 F83 M4 S55 3.0L Twin Turbo","description":"\n\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR Equal Length Valved Catback Exhaust System for 2014-2020 BMW F80 M3 F82 F83 M4 S55 3.0L Twin Turbo\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nGive your BMW M3 or M4 a more distinctive exhaust character with the KYOSTAR Equal Length Valved Sport Catback Exhaust System. Listed for compatible 2014-2020 BMW F80 M3 and F82\/F83 M4 applications, this aftermarket exhaust system combines an equal-length pipe design with a valved exhaust configuration.\n\u003c\/p\u003e\n\n\u003cp\u003e\nDesigned for BMW M enthusiasts who want to personalize their vehicle's exhaust setup, the KYOSTAR system features shaped metal piping, an equal-length exhaust layout, and a valved rear exhaust section as identified in the supplied product information.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe equal-length design is intended to provide a different exhaust routing configuration compared with conventional unequal-length systems. The valved exhaust configuration provides an additional exhaust-flow control element, although the exact valve actuation and control method must be confirmed before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nWhether you're upgrading a BMW F80 M3 Sedan, F82 M4 Coupe, or F83 M4 Convertible, this performance exhaust system offers a distinctive aftermarket exhaust configuration for compatible BMW M applications.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\u003cli\u003eEqual-length valved sport exhaust system for compatible BMW F80 M3 and F82\/F83 M4 applications.\u003c\/li\u003e\n\u003cli\u003eListed for 2014-2020 BMW M3 and M4 models within the supplied fitment range.\u003c\/li\u003e\n\u003cli\u003eDesigned for the BMW F80\/F82\/F83 M performance platform.\u003c\/li\u003e\n\u003cli\u003eEqual-length exhaust pipe configuration as identified in the product specifications.\u003c\/li\u003e\n\u003cli\u003eValved exhaust system design.\u003c\/li\u003e\n\u003cli\u003eAftermarket alternative to compatible factory exhaust components.\u003c\/li\u003e\n\u003cli\u003eShaped metal exhaust piping visible in the product image.\u003c\/li\u003e\n\u003cli\u003eRear muffler assembly visible in the supplied product image.\u003c\/li\u003e\n\u003cli\u003eDual-side rear exhaust outlet configuration.\u003c\/li\u003e\n\u003cli\u003eSilver-colored metal exhaust appearance.\u003c\/li\u003e\n\u003cli\u003ePerformance-inspired exhaust layout for BMW M enthusiasts.\u003c\/li\u003e\n\u003cli\u003eDesigned for owners seeking a different exhaust tone and character.\u003c\/li\u003e\n\u003cli\u003eVehicle-specific exhaust configuration for the listed BMW chassis.\u003c\/li\u003e\n\u003cli\u003eProfessional installation and valve-system compatibility verification recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW M3:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2014-2020 BMW M3 Sedan (F80) — as applicable to model year and production configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW M4:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2014-2020 BMW M4 Coupe (F82) — as applicable to model year and production configuration.\u003c\/li\u003e\n\u003cli\u003e2014-2020 BMW M4 Convertible (F83) — as applicable to model year and production configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eChassis:\u003c\/strong\u003e BMW F80 \/ F82 \/ F83\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Platform:\u003c\/strong\u003e BMW S55 3.0L Twin-Turbo Inline-Six (platform reference; verify vehicle configuration)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExhaust Configuration:\u003c\/strong\u003e Equal Length \/ Valved Sport Exhaust\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eImportant Fitment Note\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nPlease verify your BMW chassis code, production year, factory exhaust configuration, and exhaust connection layout before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product is listed for compatible BMW F80 M3 and F82\/F83 M4 applications within the source-listed 2014-2020 range.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe listed model-year range does not establish that every model or body style was produced in every year.\n\u003c\/p\u003e\n\n\u003cp\u003e\nCompatibility with BMW F87 M2, F87 M2 Competition, G80\/G81 M3, G82\/G83 M4, standard BMW 3 Series or 4 Series models, and other BMW platforms is not confirmed.\n\u003c\/p\u003e\n\n\u003cp\u003e\nVehicles equipped with aftermarket downpipes, modified exhaust components, or non-factory valve systems may require additional fitment verification.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore purchase, confirm the upstream and downstream exhaust connections, exhaust hanger positions, underbody clearance, and rear bumper tip alignment.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied information does not confirm whether factory valve actuators are reused or whether a separate electronic or remote valve controller is included.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFitment Note\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nThe KYOSTAR Equal Length Valved Sport Catback Exhaust System is intended for compatible BMW F80 M3 and F82\/F83 M4 applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\nA catback exhaust system generally refers to the exhaust components installed downstream of the catalytic converter section. The exact included pipe sections for this product should be verified against the complete package contents.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product is described as an equal-length exhaust system. The supplied specifications do not provide independently measured individual pipe lengths or detailed engineering drawings.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe system is also identified as valved. Exhaust valves can change the available exhaust flow path depending on their operating position, but the exact control mechanism and operating behavior of this product are not specified.\n\u003c\/p\u003e\n\n\u003cp\u003e\nReplacing factory exhaust components may change exhaust tone, volume, and driving characteristics. Actual results depend on the complete exhaust configuration, including downpipes, rear mufflers, exhaust valves, and other modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied specifications do not establish the exact pipe diameter, metal grade, valve actuator type, control method, system weight, measured sound level, or tested horsepower and torque gains.\n\u003c\/p\u003e\n\n\u003cp\u003e\nNo specific numerical performance improvement is claimed without supporting vehicle-specific testing.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Confirm the complete exhaust assembly, valve connections, and any required modifications before purchase.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProduct Details \u0026amp; Technical Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;\" border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKYOSTAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eNA-CB-5095-SS-MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eEqual Length Valved Sport Catback Exhaust System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003ePerformance Exhaust Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Make\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003eM3 \/ M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eF80 \/ F82 \/ F83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSource-Listed Model Years\u003c\/td\u003e\n\u003ctd\u003e2014-2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Platform\u003c\/td\u003e\n\u003ctd\u003eS55 3.0L Twin-Turbo Inline-Six (Platform Reference)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Type\u003c\/td\u003e\n\u003ctd\u003eValved Sport Catback Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe Design\u003c\/td\u003e\n\u003ctd\u003eEqual Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Configuration\u003c\/td\u003e\n\u003ctd\u003eValved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Control Method\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Valve Actuator Compatibility\u003c\/td\u003e\n\u003ctd\u003eNot Confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial Grade\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eSilver-Colored Metal Appearance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe Diameter\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Outlet Layout\u003c\/td\u003e\n\u003ctd\u003eDual-Side Rear Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Weight\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Level\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eExhaust Components as Shown; Complete Hardware and Controller Contents to Be Confirmed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eProfessional Installation Recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWhy Upgrade Your Factory Exhaust?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nThe factory BMW F80 M3 and F82\/F83 M4 exhaust systems are engineered to balance everyday drivability, exhaust sound, emissions requirements, and vehicle refinement.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAn aftermarket equal-length exhaust system provides a different exhaust routing configuration for drivers looking to personalize their BMW M car.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe KYOSTAR Equal Length Valved Sport Catback Exhaust combines equal-length pipe routing with a valved exhaust design, offering a performance-inspired alternative to compatible factory exhaust components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nActual sound changes and performance characteristics depend on the complete vehicle configuration. No specific sound level, horsepower increase, or torque gain is claimed without supporting test data.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What BMW models does this exhaust system fit?\u003c\/strong\u003e\u003cbr\u003e\nA: It is listed for compatible 2014-2020 BMW F80 M3 and F82\/F83 M4 applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW F80 M3?\u003c\/strong\u003e\u003cbr\u003e\nA: The F80 M3 is included in the listed applications. Verify the production year and exhaust configuration before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW F82 M4 Coupe?\u003c\/strong\u003e\u003cbr\u003e\nA: The F82 M4 Coupe is included in the listed applications. Confirm your vehicle's exhaust connection layout before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW F83 M4 Convertible?\u003c\/strong\u003e\u003cbr\u003e\nA: The F83 M4 Convertible is included in the listed applications. Please verify the factory exhaust configuration before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an equal-length exhaust system?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Equal Length is explicitly identified in the supplied product name.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this exhaust have valves?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The product is identified as a valved exhaust system. The exact control method is not specified.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does it include a remote controller?\u003c\/strong\u003e\u003cbr\u003e\nA: A remote controller is not confirmed in the supplied product information. Please verify the package contents before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the factory exhaust valve actuators?\u003c\/strong\u003e\u003cbr\u003e\nA: Factory actuator compatibility is not confirmed. Please verify before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this a complete catback exhaust?\u003c\/strong\u003e\u003cbr\u003e\nA: The source title identifies it as a catback system, but the exact included pipe sections should be confirmed before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this change my BMW's exhaust sound?\u003c\/strong\u003e\u003cbr\u003e\nA: An aftermarket exhaust may change exhaust tone and volume. Actual results depend on the complete exhaust setup.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this made from stainless steel?\u003c\/strong\u003e\u003cbr\u003e\nA: The supplied product information does not explicitly confirm the stainless steel grade or detailed material specification.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the exhaust pipe diameter?\u003c\/strong\u003e\u003cbr\u003e\nA: The exact pipe diameter is not specified.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW F87 M2 Competition?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatibility with F87 M2 Competition applications is not confirmed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this increase horsepower?\u003c\/strong\u003e\u003cbr\u003e\nA: No verified dyno data is provided, so no specific horsepower or torque gain is claimed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this require ECU tuning?\u003c\/strong\u003e\u003cbr\u003e\nA: A tuning requirement is not specified. Please verify based on the vehicle and existing modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Professional installation is recommended to ensure correct exhaust alignment, secure connections, and proper valve-system operation.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInstallation Note\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nAllow the exhaust system to cool completely before beginning installation.\n\u003c\/p\u003e\n\n\u003cp\u003e\nSecurely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInspect the factory exhaust system and verify that the KYOSTAR exhaust components match the intended connection points and mounting locations.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInstall the exhaust components using the appropriate hardware and procedures for the specific vehicle.\n\u003c\/p\u003e\n\n\u003cp\u003e\nIf the system uses exhaust valve actuators or electronic control components, verify their compatibility and installation requirements before connecting or operating the valve system.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore final tightening, confirm proper exhaust alignment, hanger positioning, and clearance from nearby underbody components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAfter installation, inspect all exhaust joints, mounting points, and valve components. Check for exhaust leaks, rattles, vibration, and interference.\n\u003c\/p\u003e\n\n\u003cp\u003e\nProfessional installation is recommended.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWarranty \u0026amp; Shipping\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nPlease review the applicable KYOSTAR warranty terms before purchasing. Warranty coverage, duration, and exclusions are subject to the policy in effect at the time of purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInspect the product upon delivery for visible shipping damage, missing components, or other concerns. Retain the original packaging and contact KYOSTAR customer support if an issue is identified.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore installation, verify that the received product matches SKU NA-CB-5095-SS-MB and your intended BMW F80 M3 or F82\/F83 M4 application.\n\u003c\/p\u003e\n\n\u003cp\u003e\nExhaust noise and modification regulations vary by location. Please confirm applicable local requirements before installation or road use.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFor fitment assistance, valve-system questions, installation support, shipping information, or after-sales service, please contact KYOSTAR customer service.\n\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"KYOSTAR","offers":[{"title":"Ships from U.S. Warehouse","offer_id":67951176286481,"sku":"NA-CB-5095-SS-MB-4","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Ships from A.U. 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