{"product_id":"milltek-opf-back-exhaust-for-bmw-g20-21-m340i-g22-m440i-cerakote-black-tips-ssxbm1159","title":"Milltek OPF Back Exhaust for BMW G20\/21 M340i \u0026 G22 M440i, Cerakote Black Tips","description":"\u003cp\u003eMilltek OPF back exhaust system for BMW G20\/21 M340i and G22 M440i - direct factory fitment replacement engineered to enhance sound character and visual presence without modification. This system routes exhaust downstream of the OEM particulate filter, preserving emissions compliance while unlocking mid-range response and full-throttle tone refinement.\u003c\/p\u003e\n\u003cp\u003eConstructed from T304L stainless steel with mandrel-bent piping and hand-finished quad black GT-100 tailpipes. Direct OEM hanger compatibility ensures zero-modification installation. Available in resonated and non-resonated configurations to suit street or closed-course driving preferences.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eG20 M340i sedan and G21 M340i touring fitment\u003c\/li\u003e\n\u003cli\u003eG22 M440i coupe fitment\u003c\/li\u003e\n\u003cli\u003eT304L stainless, mandrel-bent construction\u003c\/li\u003e\n\u003cli\u003eQuad black GT-100 black trim tailpipes\u003c\/li\u003e\n\u003cli\u003eDirect factory fitment - uses OEM hangers\u003c\/li\u003e\n\u003cli\u003eOPF-compliant (emissions-legal)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2021-2026 BMW M340i Base\u003c\/li\u003e\n\u003cli\u003e2021-2026 BMW M440i Base\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60150725378334,"sku":"MILSSXBM1159","price":2890.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXBM1159_1.jpg?v=1791255057","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-opf-back-exhaust-for-bmw-g20-21-m340i-g22-m440i-cerakote-black-tips-ssxbm1159","provider":"Signature Autohaus","version":"1.0","type":"link"}