{"product_id":"g8x-mach1-midsection","title":"MACH-1 Mid-Section - BMW G80\/G82 M3\/M4","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eReady to transcend your S58 into something that feels like a Porsche GT3? \u003cstrong\u003eNo more larping, just straight mogging.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe \u003cstrong\u003eMACH-1\u003c\/strong\u003e starts with a 3-inch equal-length upper section that merges into our signature 4-inch oval mid-section. That design is what gives the car its bold, GT3-inspired character. It completely transforms the sound of the S58, eliminating the platform's notorious rasp and replacing it with a smooth, refined exhaust note. It sounds incredible with both catted and catless downpipes, delivering a high-pitched, exotic tone under partial and full throttle while holding a deep, rich, masculine note at idle.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eFitment and clearance\u003c\/strong\u003e\u003cbr\u003eMost aftermarket systems scrape heavily on lowered cars, and plenty of them scrape even at stock ride height. We tested the \u003cstrong\u003eMACH-1\u003c\/strong\u003e on both. It clears exceptionally well with no scraping, and the included drop brace replaces the factory brace to give you additional clearance where it matters. \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWhat you get\u003c\/strong\u003e\u003cbr\u003eOur complete mid-section, which bolts directly to the factory rear muffler. It's also compatible with any aftermarket rear section designed to connect to the factory mid-section. All installation hardware comes with the kit, so there's nothing extra to source.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMaterial: T304 stainless steel\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eConstruction: full back-purged TIG welds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSizing: 3-inch equal-length upper → 4-inch oval mid-section → 2.75-inch outlets\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFitment: BMW G80\/G82 M3\/M4 (2021+)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eIncludes: INR drop brace (replaces factory brace) and all installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eBuild time\u003c\/strong\u003e\u003cbr\u003eEvery system is made to order. From the time payment is received, current lead time is 10 to 15 days for manufacturing before your system ships.\u003c\/p\u003e","brand":"INR Fabrication","offers":[{"title":"Default Title","offer_id":48070142001204,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/1098\/2196\/files\/DA7950FC-2320-4BB4-9286-069332D8F1F7_transparent.png?v=1785008776","url":"https:\/\/checkout.inrfab.com\/products\/g8x-mach1-midsection","provider":"INR FAB","version":"1.0","type":"link"}