{"product_id":"supersprint-bmw-f20-f21-f30-f31-downpipe-988511","title":"Supersprint BMW F20 1 Series, F21 1 Series, F30 3 Series \u0026 F31 3 Series Stainless Steel Downpipe (Replaces Catalytic Converter)","description":"\u003cp\u003eThe Supersprint Downpipe (Replaces Catalytic Converter) is a precision, direct-fit stainless steel upgrade engineered for the BMW F20 1 Series, F21 1 Series, F30 3 Series \u0026amp; F31 3 Series. 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\u003eFor racing \/ track use only\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\u003e100% Stainless steel system Oversize Ø80mm\u003c\/li\u003e\n\u003cli\u003e100% Stainless steel system Oversize Ø80mm with valve\u003c\/li\u003e\n\u003cli\u003e100% stainless steel \"TWIN PIPE DESIGN\" system, Oversize Ø80mm\u003c\/li\u003e\n\u003cli\u003eALTERNATIVE: - 100% stainless steel \"TWIN PIPE DESIGN\" system, Oversize Ø80mm\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 F20 \/ F21 M135i (320 Hp) 2012 -\u0026gt; 2014\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i (320 Hp) 2012 -\u0026gt; 2014 (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i (320 Hp) 2012 -\u0026gt; 2014 Twin Pipe\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i (320 Hp) 2012 -\u0026gt; 2014 Twin Pipe (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i xDrive (320 Hp) 2012 -\u0026gt; 2014\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i xDrive (320 Hp) 2012 -\u0026gt; 2014 (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i xDrive (320 Hp) 2012 -\u0026gt; 2014 Twin Pipe\u003c\/li\u003e\n\u003cli\u003eBMW F20 \/ F21 M135i xDrive (320 Hp) 2012 -\u0026gt; 2014 Twin Pipe (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F30 \/ F31 (Sedan-Touring) 335i (306 Hp) 2011 -\u0026gt; 2015\u003c\/li\u003e\n\u003cli\u003eBMW F30 \/ F31 (Sedan-Touring) 335i (306 Hp) 2011 -\u0026gt; 2015 (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F30 \/ F31 (Sedan-Touring) 335iX (306 Hp) 2011 -\u0026gt; 2015\u003c\/li\u003e\n\u003cli\u003eBMW F30 \/ F31 (Sedan-Touring) 335iX (306 Hp) 2011 -\u0026gt; 2015 (with valve)\u003c\/li\u003e\n\u003cli\u003eBMW F30 (Sedan) Active Hybrid 3 (340 Hp) 2012 -\u0026gt; 2015\u003c\/li\u003e\n\u003cli\u003eBMW F30 (Sedan) Active Hybrid 3 (340 Hp) 2012 -\u0026gt; 2015 (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":57668721607038,"sku":"988511","price":621.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/7568\/8011\/files\/988511web-267998.jpg?v=1783671510","url":"https:\/\/r44performance.com\/products\/supersprint-bmw-f20-f21-f30-f31-downpipe-988511","provider":"R44 Performance","version":"1.0","type":"link"}