{"product_id":"milltek-80mm-opfgpf-back-system-bmw-m5-f90-burntblue-titanium-tips-ssxbm1177","title":"Milltek 80mm OPF\/GPF Back System | BMW M5 F90 - Burnt\/Blue Titanium Tips","description":"\u003cp\u003eMilltek OPF\/GPF Back Exhaust System for BMW M5 F90 (F90 generation, 2018+). Direct axle-back fitment requiring OE system cutting. Hand-finished T304L stainless steel construction with Burnt\/Blue Titanium GT-100 trims. ECE approved for street and track use.\u003c\/p\u003e\n\u003cp\u003eThis cat-back replacement delivers a pronounced yet refined tone while maintaining OEM+ fitment. The 3.15\" and 80mm mandrel-bent primary piping maximizes exhaust scavenging and supports dyno-proven performance gains. Engineered to preserve low-end response while opening up full-throttle character across the rev range.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; Installation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDirect BMW F90 M5 fitment (2018 onwards)\u003c\/li\u003e\n\u003cli\u003eOPF\/GPF-back configuration (secondary catalyst systems retained)\u003c\/li\u003e\n\u003cli\u003eUses OEM mounting points and hangers\u003c\/li\u003e\n\u003cli\u003eCutting of OE axle-back section required - professional installation recommended\u003c\/li\u003e\n\u003cli\u003eNo modifications to chassis or fuel system required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary Pipe Diameter: 3.15\" (80mm) mandrel-bent\u003c\/li\u003e\n\u003cli\u003eMaterial: T304L stainless steel, hand-finished\u003c\/li\u003e\n\u003cli\u003eTrim Style: Burnt\/Blue Titanium GT-100\u003c\/li\u003e\n\u003cli\u003eCompliance: ECE approved, TOV tested\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e Milltek has engineered OPF\/GPF-back systems since 2018 to preserve emissions compliance while unlocking the M5's exhaust character. \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","brand":"Milltek","offers":[{"title":"Default Title","offer_id":51360566968543,"sku":"SSXBM1177","price":4578.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8496\/9183\/files\/SSXBM1177_1.jpg?v=1789002949","url":"https:\/\/egtuning.com\/products\/milltek-80mm-opfgpf-back-system-bmw-m5-f90-burntblue-titanium-tips-ssxbm1177","provider":"Egor's Garage Tuning ","version":"1.0","type":"link"}