{"product_id":"high-flow-catless-ss304-turbo-downpipes-with-flex-section-for-bmw-f80-m3-f82-f83-m4-f87-m2-competition-s55-3-0l-twin-turbo","title":"SS304 Exhaust Downpipe with Flex Bellows 89-76mm for BMW F80 M3 F82 M4 F87 M2C S55 3.0T 2014-2021","description":"\u003cdiv\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEliminate Catalyst Restriction \u0026amp; Boost S55 Turbo Spool Speed.\u003c\/strong\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe factory catalytic converters create severe exhaust backpressure that stifles your BMW S55 twin-turbo’s full potential and dulls its iconic turbo sound. Our WANMAX Racing SS304 Catless Downpipes are the ultimate performance upgrade for F-Chassis BMW M models. Featuring a seamless one-piece mandrel bent layout and 89mm to 76mm tapered tubing, these downpipes optimize exhaust gas flow, cut turbo lag drastically, and unlock a raw, aggressive turbocharged exhaust tone. Built with integrated flex sections to absorb engine vibration and prevent pipe cracking, this set delivers reliable track-ready power without complicated fabrication.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eVEHICLE FITMENT\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M3 Sedan (F80)\u003c\/strong\u003e — 2014–2018 (3.0L S55 Twin-Turbo I6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M4 Coupe (F82) \u003c\/strong\u003e— 2014–2020 (3.0L S55 Twin-Turbo I6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M4 Convertible (F83)\u003c\/strong\u003e — 2014–2020 (3.0L S55 Twin-Turbo I6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M2 Competition (F87)\u003c\/strong\u003e — 2018–2021 (3.0L S55 Twin-Turbo I6)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatless High Flow Layout:\u003c\/strong\u003e Removes restrictive OEM catalytic converters to slash exhaust backpressure, speed up turbo spool, and boost peak horsepower \u0026amp; torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e89mm to 76mm Tapered Tubing: \u003c\/strong\u003eSmooth gradual diameter transition optimizes exhaust gas velocity for improved throttle response and consistent power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Mandrel Bent Construction: \u003c\/strong\u003eSeamless single bend design removes internal flow-blocking welds for unobstructed airflow and superior structural rigidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Flexible Bellows Section: \u003c\/strong\u003eBuilt-in flex joint absorbs engine movement and vibration, eliminating pipe stress fractures and leak risks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Mirror Polished SS304 Stainless Steel:\u003c\/strong\u003e Rust and heat resistant 304 stainless steel with polished exterior to resist corrosion and deliver a clean racing aesthetic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Installation: \u003c\/strong\u003ePrecision CNC engineered to match factory mounting positions, no cutting, welding or custom modifications required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Machined Sensor Bungs:\u003c\/strong\u003e Factory-compatible O2 sensor ports for plug-and-play sensor installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTECH SPECIFICATIONS\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003eMirror Polished SS304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e Tapered 89mm inlet down to 76mm outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction: \u003c\/strong\u003eOne-Piece Mandrel Bent Tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Parts:\u003c\/strong\u003e Vibration Absorbing Flex Bellows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration: \u003c\/strong\u003eCatless High Flow Turbo Downpipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Type: \u003c\/strong\u003eDirect OEM Bolt-On Replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine:\u003c\/strong\u003e S55 3.0L Twin Turbo I6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eWHAT'S IN THE BOX:\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e2x SS304 Catless Turbo Downpipes (Left \u0026amp; Right Pair)\u003c\/li\u003e\n\u003cli\u003eIntegrated Flex Sections Pre-Welded to Each Pipe\u003c\/li\u003e\n\u003cli\u003ePre-Welded O2 Sensor Bungs\u003c\/li\u003e\n\u003cli\u003eComplete Mounting Bolt Hardware Kit\u003c\/li\u003e\n\u003cli\u003eOEM Matching Flange Connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wanmax Racing","offers":[{"title":"Default Title","offer_id":54912990413172,"sku":"WMR-M3F80-DP-SS-001","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/H81d1169a0f2b48fe8d46553188e76f2fP_4260b4d8-8072-4286-920c-0800cf49cf81.jpg?v=1783575682","url":"https:\/\/wanmaxracing.com\/products\/high-flow-catless-ss304-turbo-downpipes-with-flex-section-for-bmw-f80-m3-f82-f83-m4-f87-m2-competition-s55-3-0l-twin-turbo","provider":"Wanmax Racing","version":"1.0","type":"link"}