{"product_id":"kyostar-fat-boy-single-midpipe-exhaust-for-2021-bmw-g80-g81-m3-g82-g83-m4-competition-s58-3-0t-performance-mid-pipe","title":"KYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe","description":"\n\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nBring a more aggressive exhaust character to your BMW M3 or M4 with the KYOSTAR Fat Boy Single Midpipe Exhaust. Designed for compatible 2021 and newer BMW G80\/G81 M3 and G82\/G83 M4 Competition applications, this performance-oriented midpipe provides an aftermarket alternative to the factory center exhaust section.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBuilt around a single-pipe center exhaust configuration, the KYOSTAR Fat Boy Midpipe is intended for BMW enthusiasts looking to change the sound and character of their S58-powered M car without replacing the entire exhaust system.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFeaturing a distinctive metal tubing layout and performance-inspired routing, this midpipe is designed to complement compatible BMW M3 and M4 exhaust configurations. Whether you're upgrading a daily-driven M3 or building a modified M4 Competition, the KYOSTAR Fat Boy Single Midpipe offers a focused center-section exhaust upgrade.\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\u003eFat Boy single midpipe exhaust configuration for compatible BMW M3 and M4 applications.\u003c\/li\u003e\n\u003cli\u003eDesigned for selected BMW G80\/G81 M3 and G82\/G83 M4 Competition models.\u003c\/li\u003e\n\u003cli\u003eIntended for BMW S58 3.0L twin-turbocharged inline-six applications.\u003c\/li\u003e\n\u003cli\u003eSingle-pipe center-section design.\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement for the compatible factory exhaust midsection.\u003c\/li\u003e\n\u003cli\u003ePerformance-focused exhaust routing as shown in the product image.\u003c\/li\u003e\n\u003cli\u003eDesigned for enthusiasts seeking a different exhaust tone and character.\u003c\/li\u003e\n\u003cli\u003eMidpipe upgrade without replacing the complete exhaust system.\u003c\/li\u003e\n\u003cli\u003eDistinctive Fat Boy product configuration.\u003c\/li\u003e\n\u003cli\u003eMetal exhaust tubing construction with a silver-colored finish as shown.\u003c\/li\u003e\n\u003cli\u003eVehicle-specific center exhaust layout for listed applications.\u003c\/li\u003e\n\u003cli\u003eSuitable for compatible street-performance and modified BMW M builds.\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\u003e2021+ BMW M3 Sedan (G80) — verify exhaust configuration.\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring (G81) — verify applicable model year and exhaust configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW M4 Competition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2021+ BMW M4 Competition Coupe (G82).\u003c\/li\u003e\n\u003cli\u003e2021+ BMW M4 Competition Convertible (G83).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngine Platform:\u003c\/strong\u003e BMW S58 3.0L Twin-Turbocharged Inline-Six\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExhaust Section:\u003c\/strong\u003e Center Midpipe\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, engine configuration, and factory exhaust layout before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product is listed for compatible BMW G80\/G81 M3 and G82\/G83 M4 Competition applications. Exact compatibility with different trim levels, factory exhaust options, and regional configurations should be confirmed before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBMW G81 M3 Touring production and market availability differ from the general 2021+ range shown in the source listing. Please verify the specific vehicle year.\n\u003c\/p\u003e\n\n\u003cp\u003e\nCompatibility with BMW G87 M2, M340i, M440i, or other BMW models is not confirmed by the supplied product information.\n\u003c\/p\u003e\n\n\u003cp\u003e\nVehicles equipped with aftermarket downpipes, modified exhaust systems, or non-factory center exhaust components may require additional fitment verification.\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 Fat Boy Single Midpipe is intended for compatible BMW G8X M3 and M4 exhaust applications equipped with the S58 engine.\n\u003c\/p\u003e\n\n\u003cp\u003e\nA midpipe is the center section of an exhaust system, connecting the upstream exhaust components to the downstream rear exhaust assembly.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe single-midpipe configuration changes the layout of the factory center exhaust section and may alter the vehicle's exhaust sound and character.\n\u003c\/p\u003e\n\n\u003cp\u003e\nActual exhaust tone, volume, and driving experience will depend on the factory or aftermarket downpipes, rear muffler, exhaust valves, and other modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore installation, verify the upstream and downstream connection locations, exhaust hanger arrangement, pipe clearance, and compatibility with the vehicle's existing exhaust system.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied specifications do not establish the exact pipe diameter, metal grade, wall thickness, weight, included clamps, or verified horsepower and torque gains.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product should not be assumed to fit every factory or aftermarket exhaust configuration without additional verification.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Exhaust fabrication or modification requirements, if any, should be confirmed for the specific vehicle before purchase.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProduct Details\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-MP-5093-SS-MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eFat Boy Single Midpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePerformance Exhaust Midpipe\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 Competition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eG80 \/ G81 \/ G82 \/ G83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed Model Years\u003c\/td\u003e\n\u003ctd\u003e2021+ (as applicable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Platform\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo Inline-Six\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Type\u003c\/td\u003e\n\u003ctd\u003eSingle Midpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Configuration\u003c\/td\u003e\n\u003ctd\u003eFat Boy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Area\u003c\/td\u003e\n\u003ctd\u003eCenter Exhaust Section\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\u003eMaterial Grade\u003c\/td\u003e\n\u003ctd\u003eNot Specified\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCenter Exhaust Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eMidpipe Assembly as Shown; Exact Hardware 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 Midpipe?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nThe factory BMW M3 and M4 exhaust system is designed to balance exhaust sound, emissions requirements, everyday drivability, and vehicle refinement.\n\u003c\/p\u003e\n\n\u003cp\u003e\nReplacing the compatible factory center exhaust section with a performance midpipe changes the exhaust routing and can create a different sound character.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe KYOSTAR Fat Boy Single Midpipe is intended for enthusiasts who want to personalize their BMW M car's exhaust experience while retaining compatible upstream and rear exhaust components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nActual sound changes depend on the complete exhaust 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 midpipe fit?\u003c\/strong\u003e\u003cbr\u003e\nA: It is listed for compatible BMW G80\/G81 M3 and G82\/G83 M4 Competition applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G80 M3?\u003c\/strong\u003e\u003cbr\u003e\nA: The G80 M3 is included in the listed applications. Verify the production year and factory exhaust configuration before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G82 M4 Competition?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, compatible G82 M4 Competition applications are listed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G81 M3 Touring?\u003c\/strong\u003e\u003cbr\u003e\nA: G81 M3 Touring is included in the source fitment information. Verify the exact model year and exhaust configuration before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is a single midpipe?\u003c\/strong\u003e\u003cbr\u003e\nA: A single midpipe uses a single main pipe section within the center exhaust layout, replacing the compatible factory midsection.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What does Fat Boy mean?\u003c\/strong\u003e\u003cbr\u003e\nA: Fat Boy is the product's listed configuration name. The exact pipe diameter is not provided.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this a full exhaust system?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This is a center exhaust midpipe, not a complete catback or axleback system.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this make my BMW louder?\u003c\/strong\u003e\u003cbr\u003e\nA: A performance midpipe can change exhaust sound and volume. Actual results depend on the rest of the exhaust system.\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 material grade. Please verify the material specification before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the pipe diameter?\u003c\/strong\u003e\u003cbr\u003e\nA: The exact pipe diameter is not specified in the supplied product information.\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: Will this work with factory downpipes?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatibility with the existing upstream exhaust connections should be verified before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this work with an aftermarket axleback exhaust?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatibility depends on the connection dimensions and exhaust configuration. Additional verification may be required.\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. Consult a qualified installer regarding your complete vehicle configuration.\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 alignment, secure connections, and adequate clearance.\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 installation. Securely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInspect the existing center exhaust assembly and verify that the KYOSTAR midpipe matches the intended connection locations and routing.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInstall the midpipe using the appropriate connection hardware and installation procedures for the specific vehicle.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAfter installation, inspect all exhaust joints, mounting points, hanger positions, and nearby components. Check for exhaust leaks, vibration, and interference before normal driving.\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 accessories, 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-MP-5093-SS-MB and your intended BMW 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, installation questions, shipping information, or after-sales support, please contact KYOSTAR customer service.\n\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR Fat Boy Single Midpipe Exhaust for 2021+ BMW G80 G81 M3 G82 G83 M4 Competition S58 3.0T Performance Mid Pipe\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nBring a more aggressive exhaust character to your BMW M3 or M4 with the KYOSTAR Fat Boy Single Midpipe Exhaust. Designed for compatible 2021 and newer BMW G80\/G81 M3 and G82\/G83 M4 Competition applications, this performance-oriented midpipe provides an aftermarket alternative to the factory center exhaust section.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBuilt around a single-pipe center exhaust configuration, the KYOSTAR Fat Boy Midpipe is intended for BMW enthusiasts looking to change the sound and character of their S58-powered M car without replacing the entire exhaust system.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFeaturing a distinctive metal tubing layout and performance-inspired routing, this midpipe is designed to complement compatible BMW M3 and M4 exhaust configurations. Whether you're upgrading a daily-driven M3 or building a modified M4 Competition, the KYOSTAR Fat Boy Single Midpipe offers a focused center-section exhaust upgrade.\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\u003eFat Boy single midpipe exhaust configuration for compatible BMW M3 and M4 applications.\u003c\/li\u003e\n\u003cli\u003eDesigned for selected BMW G80\/G81 M3 and G82\/G83 M4 Competition models.\u003c\/li\u003e\n\u003cli\u003eIntended for BMW S58 3.0L twin-turbocharged inline-six applications.\u003c\/li\u003e\n\u003cli\u003eSingle-pipe center-section design.\u003c\/li\u003e\n\u003cli\u003eAftermarket replacement for the compatible factory exhaust midsection.\u003c\/li\u003e\n\u003cli\u003ePerformance-focused exhaust routing as shown in the product image.\u003c\/li\u003e\n\u003cli\u003eDesigned for enthusiasts seeking a different exhaust tone and character.\u003c\/li\u003e\n\u003cli\u003eMidpipe upgrade without replacing the complete exhaust system.\u003c\/li\u003e\n\u003cli\u003eDistinctive Fat Boy product configuration.\u003c\/li\u003e\n\u003cli\u003eMetal exhaust tubing construction with a silver-colored finish as shown.\u003c\/li\u003e\n\u003cli\u003eVehicle-specific center exhaust layout for listed applications.\u003c\/li\u003e\n\u003cli\u003eSuitable for compatible street-performance and modified BMW M builds.\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\u003e2021+ BMW M3 Sedan (G80) — verify exhaust configuration.\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring (G81) — verify applicable model year and exhaust configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eBMW M4 Competition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2021+ BMW M4 Competition Coupe (G82).\u003c\/li\u003e\n\u003cli\u003e2021+ BMW M4 Competition Convertible (G83).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngine Platform:\u003c\/strong\u003e BMW S58 3.0L Twin-Turbocharged Inline-Six\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExhaust Section:\u003c\/strong\u003e Center Midpipe\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, engine configuration, and factory exhaust layout before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product is listed for compatible BMW G80\/G81 M3 and G82\/G83 M4 Competition applications. Exact compatibility with different trim levels, factory exhaust options, and regional configurations should be confirmed before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBMW G81 M3 Touring production and market availability differ from the general 2021+ range shown in the source listing. Please verify the specific vehicle year.\n\u003c\/p\u003e\n\n\u003cp\u003e\nCompatibility with BMW G87 M2, M340i, M440i, or other BMW models is not confirmed by the supplied product information.\n\u003c\/p\u003e\n\n\u003cp\u003e\nVehicles equipped with aftermarket downpipes, modified exhaust systems, or non-factory center exhaust components may require additional fitment verification.\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 Fat Boy Single Midpipe is intended for compatible BMW G8X M3 and M4 exhaust applications equipped with the S58 engine.\n\u003c\/p\u003e\n\n\u003cp\u003e\nA midpipe is the center section of an exhaust system, connecting the upstream exhaust components to the downstream rear exhaust assembly.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe single-midpipe configuration changes the layout of the factory center exhaust section and may alter the vehicle's exhaust sound and character.\n\u003c\/p\u003e\n\n\u003cp\u003e\nActual exhaust tone, volume, and driving experience will depend on the factory or aftermarket downpipes, rear muffler, exhaust valves, and other modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\nBefore installation, verify the upstream and downstream connection locations, exhaust hanger arrangement, pipe clearance, and compatibility with the vehicle's existing exhaust system.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied specifications do not establish the exact pipe diameter, metal grade, wall thickness, weight, included clamps, or verified horsepower and torque gains.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThis product should not be assumed to fit every factory or aftermarket exhaust configuration without additional verification.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Exhaust fabrication or modification requirements, if any, should be confirmed for the specific vehicle before purchase.\n\u003c\/p\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProduct Details\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-MP-5093-SS-MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eFat Boy Single Midpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePerformance Exhaust Midpipe\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 Competition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003eG80 \/ G81 \/ G82 \/ G83\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed Model Years\u003c\/td\u003e\n\u003ctd\u003e2021+ (as applicable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Platform\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo Inline-Six\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Type\u003c\/td\u003e\n\u003ctd\u003eSingle Midpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Configuration\u003c\/td\u003e\n\u003ctd\u003eFat Boy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Area\u003c\/td\u003e\n\u003ctd\u003eCenter Exhaust Section\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\u003eMaterial Grade\u003c\/td\u003e\n\u003ctd\u003eNot Specified\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCenter Exhaust Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eMidpipe Assembly as Shown; Exact Hardware 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 Midpipe?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nThe factory BMW M3 and M4 exhaust system is designed to balance exhaust sound, emissions requirements, everyday drivability, and vehicle refinement.\n\u003c\/p\u003e\n\n\u003cp\u003e\nReplacing the compatible factory center exhaust section with a performance midpipe changes the exhaust routing and can create a different sound character.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe KYOSTAR Fat Boy Single Midpipe is intended for enthusiasts who want to personalize their BMW M car's exhaust experience while retaining compatible upstream and rear exhaust components.\n\u003c\/p\u003e\n\n\u003cp\u003e\nActual sound changes depend on the complete exhaust 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 midpipe fit?\u003c\/strong\u003e\u003cbr\u003e\nA: It is listed for compatible BMW G80\/G81 M3 and G82\/G83 M4 Competition applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G80 M3?\u003c\/strong\u003e\u003cbr\u003e\nA: The G80 M3 is included in the listed applications. Verify the production year and factory exhaust configuration before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G82 M4 Competition?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, compatible G82 M4 Competition applications are listed.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit a BMW G81 M3 Touring?\u003c\/strong\u003e\u003cbr\u003e\nA: G81 M3 Touring is included in the source fitment information. Verify the exact model year and exhaust configuration before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is a single midpipe?\u003c\/strong\u003e\u003cbr\u003e\nA: A single midpipe uses a single main pipe section within the center exhaust layout, replacing the compatible factory midsection.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What does Fat Boy mean?\u003c\/strong\u003e\u003cbr\u003e\nA: Fat Boy is the product's listed configuration name. The exact pipe diameter is not provided.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this a full exhaust system?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This is a center exhaust midpipe, not a complete catback or axleback system.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this make my BMW louder?\u003c\/strong\u003e\u003cbr\u003e\nA: A performance midpipe can change exhaust sound and volume. Actual results depend on the rest of the exhaust system.\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 material grade. Please verify the material specification before ordering.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the pipe diameter?\u003c\/strong\u003e\u003cbr\u003e\nA: The exact pipe diameter is not specified in the supplied product information.\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: Will this work with factory downpipes?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatibility with the existing upstream exhaust connections should be verified before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Will this work with an aftermarket axleback exhaust?\u003c\/strong\u003e\u003cbr\u003e\nA: Compatibility depends on the connection dimensions and exhaust configuration. Additional verification may be required.\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. Consult a qualified installer regarding your complete vehicle configuration.\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 alignment, secure connections, and adequate clearance.\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 installation. Securely raise and support the vehicle using appropriate lifting equipment and manufacturer-approved lifting points.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInspect the existing center exhaust assembly and verify that the KYOSTAR midpipe matches the intended connection locations and routing.\n\u003c\/p\u003e\n\n\u003cp\u003e\nInstall the midpipe using the appropriate connection hardware and installation procedures for the specific vehicle.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAfter installation, inspect all exhaust joints, mounting points, hanger positions, and nearby components. Check for exhaust leaks, vibration, and interference before normal driving.\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 accessories, 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-MP-5093-SS-MB and your intended BMW 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, installation questions, shipping information, or after-sales support, 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":67809047413009,"sku":"NA-MP-5093-SS-MB-1","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Ships from Australian Warehouse","offer_id":67809047445777,"sku":"NA-MP-5093-SS-MB-2","price":440.0,"currency_code":"USD","in_stock":true},{"title":"Ships from U.K. Warehouse","offer_id":67809047478545,"sku":"NA-MP-5093-SS-MB-3","price":445.0,"currency_code":"USD","in_stock":true},{"title":"Ships from German Warehouse","offer_id":67809047511313,"sku":"NA-MP-5093-SS-MB-4","price":445.0,"currency_code":"USD","in_stock":true},{"title":"Factory Direct Shipping","offer_id":67809047544081,"sku":"NA-MP-5093-SS-MB-5","price":545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/7361\/5889\/files\/NA-MP-5093-SS-MB_4.jpg?v=1792392983","url":"https:\/\/www.kyostars.com\/products\/kyostar-fat-boy-single-midpipe-exhaust-for-2021-bmw-g80-g81-m3-g82-g83-m4-competition-s58-3-0t-performance-mid-pipe","provider":"KYOSTAR PERFORMANCE","version":"1.0","type":"link"}