{"product_id":"supersprint-bmw-m3-m4-mid-pipe-527762","title":"Supersprint BMW G20 B3, G21 B3, G26 B4, G80 M3 \u0026 more Stainless Steel \"J-Pipe\" with Metallic Catalytics","description":"\u003cp\u003eThe Supersprint \"J-Pipe\" with Metallic Catalytics is a precision, direct-fit stainless steel upgrade engineered for the BMW G20 B3, G21 B3, G26 B4, G80 M3 \u0026amp; more. It replaces the restrictive factory component to free up exhaust flow, sharpen throttle response and give your BMW 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\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\u003eThreaded bung for the oxygen sensor provided\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 + centre exhaust - Full kit only\u003c\/li\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\"J-Pipe\" system - (100mm Cross section - Mandrel bent) - for the Stock \/ M Performance rear muffler - Deletes the secondary catalytic + OPF + centre exhaust - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"J-Pipe\" system - Deletes the secondary catalytic + OPF - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"J-Pipe\" system for M Performance rear muffler - (100mm Cross section - Mandrel bent) - Deletes the secondary catalytic + OPF + centre exhaust - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"J-Pipe\" system for the M Performance rear muffler - (100mm Cross section - Mandrel bent) - Deletes the secondary catalytic + OPF + centre exhaust - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"J-Pipe\" system for the Stock \/ M Performance rear muffler - Deletes the secondary catalytic + OPF + centre exhaust - Full kit only\u003c\/li\u003e\n\u003cli\u003e\"J-Pipe\" system for the Stock rear muffler - (100mm Cross section - Mandrel bent) - Deletes the secondary catalytic + OPF + centre exhaust - 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 G80 M3 \/ G80 M3 xDrive (S58 - 480 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 \"M Performance\" (S58 - 480 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 Competition (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 Competition \"M Performance\" (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 Competition xDrive (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G80 M3 CS (S58 - 550 Hp - models with OPF) 2023 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G81 M3 Competition xDrive (S58 - 510 Hp - Models with OPF) 2022 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G81 M3 CS (S58 - 550 Hp - models with OPF) 2025 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 \/ G82 M4 xDrive (S58 - 480 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 \"M Performance\" (S58 - 480 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 Competition (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 Competition \"M Performance\" (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 Competition xDrive (S58 - 510 Hp - models with OPF) 2021 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G82 M4 CSL (S58 - 550 Hp - models with OPF) 2022 -\u0026gt; 2023\u003c\/li\u003e\n\u003cli\u003eBMW G83 M4 Convertible \/ G83 M4 xDrive (S58 - 480 Hp - models with OPF) 2022 -\u0026gt;\u003c\/li\u003e\n\u003cli\u003eBMW G83 M4 Competition Convertible xDrive (S58 - 510 Hp - models with OPF) 2022 -\u0026gt;\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":57668820763006,"sku":"527762","price":5920.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/7568\/8011\/files\/527762-294667.jpg?v=1783672619","url":"https:\/\/r44performance.com\/products\/supersprint-bmw-m3-m4-mid-pipe-527762","provider":"R44 Performance","version":"1.0","type":"link"}