{"product_id":"milltek-resonated-secondary-cat-bypass-bmw-g8x-m3-m4-ssxbm1267","title":"Resonated Secondary Cat Bypass | BMW G8X M3 M4 | Milltek","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Milltek Axle Back Resonated Secondary Cat Bypass is engineered for BMW G8X M3 and M4 models. This system replaces the factory secondary catalyst with a resonated bypass pipe, designed to fit OE downpipes and Milltek Axle Back systems only. Direct factory fitment with OEM hangers — no modification required.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel with mandrel-bent piping, the resonated design is tuned to the G8X platform's natural resonance point, delivering a refined yet sportier exhaust character at full throttle while minimizing drone in cruise. Pipe diameter: 3.00\" (76.2mm). Engineered to exhilarate without compromise.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M3 G80 (2021–present)\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\/G83 (2021–present)\u003c\/li\u003e\n\u003cli\u003eRequires OE or Milltek downpipes\u003c\/li\u003e\n\u003cli\u003eCompatible with Milltek Axle Back systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Built in-house from raw material to finished component. \u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":68005573067054,"sku":"SSXBM1267","price":1254.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/1719\/1726\/files\/SSXBM1267_1.jpg?v=1794452241","url":"https:\/\/shopicwp.com\/products\/milltek-resonated-secondary-cat-bypass-bmw-g8x-m3-m4-ssxbm1267","provider":"Inner Circle Wheels and Performance","version":"1.0","type":"link"}