{"product_id":"dinan-high-flow-middle-exhaust-bmw-g80-m3-g82-m4","title":"Dinan High Flow Middle Exhaust BMW G80 M3 \/ G82 M4","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Dinan High Flow Middle Exhaust is one of the best sound upgrades available for the BMW G8X M3 and M4 platform, delivering a deeper, smoother, and more aggressive exhaust note without replacing the factory rear muffler. Designed as a direct replacement for the restrictive factory center section, this system removes the OEM resonators and incorporates a free-flowing X-pipe design to unlock the true character of BMW's twin-turbocharged S58 engine.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike many midpipe upgrades that create excessive rasp or unwanted drone, Dinan engineered this system to improve exhaust tone and volume while maintaining a refined sound profile. The integrated mandrel-bent X-pipe helps balance exhaust flow between both banks, producing a smoother and fuller exhaust note throughout the RPM range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConstructed from premium T304 stainless steel and utilizing larger 3-inch tubing throughout, the Dinan High Flow Middle Exhaust improves exhaust flow while reducing weight compared to the factory center section. Whether paired with the factory axle-back exhaust or the Dinan Valved Axle-Back System, this upgrade delivers a noticeable improvement in sound every time you start the car.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eFitment Notes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eFits BMW G80 M3 (2021-2026)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFits BMW G82 M4 Coupe (2021-2026)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFits BMW G83 M4 Convertible (2021-2026)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for vehicles equipped with the BMW S58 twin-turbocharged engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDirect replacement for the factory center exhaust section\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with the factory rear muffler system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with BMW M Performance axle-back exhaust systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfirmed fitment with Dinan Valved Axle-Back Exhaust systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProfessional installation recommended\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDoes not modify or remove emissions equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eIncluded\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eDinan High Flow Middle Exhaust assembly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntegrated mandrel-bent X-pipe section\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eT304 stainless steel tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMounting components required for installation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eProduct Specs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003ePart Number: D660-0094\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaterial: T304 Stainless Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTubing Diameter: 76mm (3.0-inch)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory Tubing Diameter: 70mm (2.75-inch)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConfiguration: Resonator Delete X-Pipe\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 17 lbs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory Midpipe Weight: 22 lbs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight Savings: Approximately 5 lbs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConstruction: Mandrel-bent tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstallation Time: Approximately 1.5 hours\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEmissions Impact: No impact on emissions equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eProduct Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eProduces a deeper, louder, and smoother exhaust note\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMandrel-bent X-pipe improves exhaust scavenging and flow balance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarger 3-inch tubing reduces restriction versus factory exhaust\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDeletes factory resonators for increased volume and character\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSaves approximately 5 lbs over the OEM center section\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with factory and Dinan axle-back exhaust systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePremium T304 stainless steel construction for long-term durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory-style fitment with bolt-on installation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan\u003eWhy Choose the Dinan High Flow Middle Exhaust?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor many G80 M3 and G82\/G83 M4 owners, the factory exhaust lacks the volume and excitement expected from a modern M car. The Dinan High Flow Middle Exhaust addresses this by replacing the most restrictive section of the factory exhaust system with a larger, freer-flowing X-pipe design that dramatically improves sound quality without requiring a full exhaust replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether installed on an otherwise stock vehicle or paired with a Dinan Valved Axle-Back Exhaust, this upgrade delivers the aggressive tone, improved flow, and premium build quality enthusiasts expect while maintaining the refinement that makes the G8X platform such an exceptional daily driver.\u003c\/span\u003e\u003c\/p\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":52690129125696,"sku":"DNND660-0094","price":899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/7587\/4624\/files\/c05ef41c21f31d3b87ef9ff7c19836aeL.jpg?v=1782312942","url":"https:\/\/www.forzamotorworks.com\/products\/dinan-high-flow-middle-exhaust-bmw-g80-m3-g82-m4","provider":"Forza Motor Works","version":"1.0","type":"link"}