{"product_id":"supersprint-alpina-g20-g21-g26-rear-exhaust-527004","title":"Supersprint Alpina G20 3 Series, G21 3 Series \u0026 G26 B4 Stainless Steel Rear Exhaust - with Valve(For OEM Endpipes)","description":"\u003cp\u003eThe Supersprint Rear Exhaust Right - Left with Valve(For OEM Endpipes) is a precision, direct-fit stainless steel upgrade engineered for the Alpina G20 3 Series, G21 3 Series \u0026amp; G26 B4. It replaces the restrictive factory component to free up exhaust flow, sharpen throttle response and give your Alpina a deeper, more purposeful note.\u003c\/p\u003e\u003cp\u003eSupersprint has been handcrafting performance exhausts in Mantova, Italy since 1955. Every system is designed and validated on the dyno – not by assumption – using thin-wall stainless steel and carefully sized tubing that raises exhaust gas velocity while protecting mid-range torque, so you gain real, usable power across the rev range.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete left- and right-hand pair – both sides included\u003c\/li\u003e\n\u003cli\u003eHandmade in Italy from corrosion-resistant stainless steel\u003c\/li\u003e\n\u003cli\u003eDyno-developed for genuine mid-range and top-end power gains\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on fit to the OEM mounting points\u003c\/li\u003e\n\u003cli\u003eCompatible with the OEM catalytic converter\u003c\/li\u003e\n\u003cli\u003eCompliant with noise regulation 70\/157\/EEC\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePart of the following Supersprint exhaust systems:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\"J-Pipe\" system - (100mm Cross section - Mandrel bent) - Deletes the secondary catalytic + OPF - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"Twin Pipe\" system - Deletes the secondary catalytic + OPF - Full kit only\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel system \"OPF-Back\" - Full kit only\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel system - Deletes the secondary catalytic + OPF - Full kit only\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel, right - left system for the stock bumper - \"V-clamp\" connecting version - Full kit only\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel, right - left system for the stock bumper - \"slip-on\" connecting version - Full kit only\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel, right - left system for the stock bumper - Full kit only\u003c\/li\u003e\n\u003cli\u003eOPF-Back system - Full kit only\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment – this part is compatible with:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i (B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i xDrive (B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i (USA Model - B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i xDrive (USA Model - B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i (B58 - 374 Hp- models with OPF) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G20 (Sedan) M340i xDrive (B58 - 374 Hp- models with OPF) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G21 (Touring) M340i (B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G21 (Touring) M340i xDrive (B58 - 374 Hp) 2019 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G21 (Touring) M340i (B58 - 374 Hp- models with OPF) 2020 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW G21 (Touring) M340i xDrive (B58 - 374 Hp- models with OPF) 2020 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 (G20) Sedan 4x4 (S58 - 462 Hp - models with OPF) 2020 -\u0026gt; 2022 (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 (G21) Touring 4x4 (S58 - 462 Hp - models with OPF) 2020 -\u0026gt; 2022 (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 (G20) Sedan 4x4 (S58 - 495 Hp - models with OPF) 2023 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 (G21) Touring 4x4 (S58 - 495 Hp - models with OPF) 2023 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 GT (G20) Sedan 4x4 (S58 - 529 Hp - Models with OPF) 2024 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B3 GT (G21) Touring 4x4 (S58 - 529 Hp - Models with OPF) 2024 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003cli\u003eALPINA B4 (G26) Gran Coupé (S58 - 495 Hp - models with OPF) 2023 -\u0026gt; (with valve)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSupplied by R44 Performance, an authorised Supersprint partner, with fast UK and worldwide delivery. Need help choosing the right option for your build? Contact our team for expert fitment advice.\u003c\/p\u003e","brand":"Supersprint","offers":[{"title":"Default Title","offer_id":57668691362174,"sku":"527004","price":3577.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/7568\/8011\/files\/87667-2-527004_web-599636.jpg?v=1783670929","url":"https:\/\/r44performance.com\/products\/supersprint-alpina-g20-g21-g26-rear-exhaust-527004","provider":"R44 Performance","version":"1.0","type":"link"}