{"product_id":"remus-cat-back-racing-system-left-right-with-integrated-valves-using-the-oe-valve-control-system-with-4-tail-pipes-a-84-mm-straight-carbon-insert-4-series-g22-m440i-xdrive-275-kw-b58b30b-2019","title":"Remus Cat back Racing System Left\/Right with Integrated valves using the OE valve control system with 4 tail pipes Ø 84 mm straight, carbon insert - 4 Series G22 M440i xDrive 275 kW B58B30B 2019-","description":"\u003cp\u003e\u003cstrong\u003eTransform your BMW G22 M440i with a premium valved performance exhaust that delivers sound, response and style.\u003c\/strong\u003e This Remus stainless system is a serious upgrade for the B58-powered 4 Series, combining factory-style valve control with quad straight-cut 84 mm outlets featuring carbon fibre inserts. Expect a deeper, more engaging tone with the valves open and a refined cruise with them shut, all while improving flow and shedding weight.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy enthusiasts choose this upgrade\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eValved performance exhaust that works with the car’s original electronics and drive modes\u003c\/li\u003e\n  \u003cli\u003eQuad 84 mm straight tips with real carbon fibre sleeves for a motorsport look\u003c\/li\u003e\n  \u003cli\u003ePrecision Austrian craftsmanship, TIG-welded, shot-peened stainless steel\u003c\/li\u003e\n  \u003cli\u003eLower back pressure for sharper throttle response and a livelier B58 soundtrack\u003c\/li\u003e\n  \u003cli\u003eWeight saving construction and an exact-fit installation\u003c\/li\u003e\n  \u003cli\u003eProven on our own builds and loved by MJ Modifications customers for the balanced daily-drive sound and weekend aggression\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment and installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBMW 4 Series G22 M440i xDrive, B58B30B, 2019 onwards\u003c\/li\u003e\n  \u003cli\u003eRequires M Sport specification\u003c\/li\u003e\n  \u003cli\u003eTo achieve correct alignment, use with the BMW OEM rear diffuser from the M340i G20, part no. 51 12 8 069 391\u003c\/li\u003e\n  \u003cli\u003eCutting of the factory exhaust is required during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSystem information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemoves the OPF\/GPF. This can illuminate the engine management light and will typically require ECU calibration to code out related faults\u003c\/li\u003e\n  \u003cli\u003eRetains OEM valve control for true sound-on-demand\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat you get\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-grade stainless cat-back assembly with integrated valves\u003c\/li\u003e\n  \u003cli\u003e4 x 84 mm straight-cut tailpipes with carbon fibre inserts\u003c\/li\u003e\n  \u003cli\u003eDirect-connection hardware designed for precise fitment on the G22 chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart numbers\u003c\/strong\u003e\u003cbr\u003e\n085020 1000, 085020 0000, 085120 1500, 0046 83C\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProfessional fitting\u003c\/strong\u003e\u003cbr\u003e\nFor installation, mapping support and setup, we recommend booking with MJ Modifications in Warwickshire. Request a fitting quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSearch-friendly terms to help you find this upgrade\u003c\/strong\u003e\u003cbr\u003e\nBMW G22 M440i performance exhaust, B58 valved exhaust system, quad carbon tip back box, stainless sports exhaust for 4 Series, M440i xDrive exhaust upgrade, Remus racing exhaust with valve control, left and right exit quad tips, cat-back for B58 G22, 84 mm carbon tailpipes.\u003c\/p\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55977411379586,"sku":"REM21C-343","price":3047.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/0851201500__59520.1635942444.jpg?v=1763374643","url":"https:\/\/mjmodifications.co.uk\/products\/remus-cat-back-racing-system-left-right-with-integrated-valves-using-the-oe-valve-control-system-with-4-tail-pipes-a-84-mm-straight-carbon-insert-4-series-g22-m440i-xdrive-275-kw-b58b30b-2019","provider":"MJ Modifications","version":"1.0","type":"link"}