{"product_id":"70mm-equal-length-ss304-serpentine-midpipe-exhaust-for-bmw-f80-m3-f82-m4-s55-3-0l-twin-turbo","title":"70mm Equal Length SS304 Serpentine Midpipe Exhaust for BMW F80 M3 F82 M4 S55 3.0L Twin Turbo","description":"\u003cdiv\u003e\n\u003ch3\u003eDESCRIPTION\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eEliminate Harsh Rasp \u0026amp; Deliver Balanced Pure S55 Straight-Six Sound.\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe stock unequal length mid piping of BMW F80 M3\/F82 M4 creates mismatched exhaust pulses, resulting in a harsh, raspy unwanted noise that ruins the refined straight-six tone of the S55 3.0T twin-turbo engine. Our 70mm SUS304 equal length serpentine midpipe solves this acoustic flaw with a customized wave serpentine bend layout to balance the exhaust path length of both cylinder banks fully. Synchronized exhaust pulses remove the annoying stock rasp, unleashing a clean, crisp, high-pitched exotic racing scream unique to the S55 inline six. Built with full mirror polished 304 stainless steel and smooth mandrel bent tubing, this midpipe cuts exhaust flow restriction, improves throttle response, and delivers consistent power output across all RPM ranges. Precision TIG welded joints and OEM matching flanges enable straightforward bolt-on installation without any cutting or modifications.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\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 Inline Six Engine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M4 Coupe (F82) \u003c\/strong\u003e— 2014–2020 (3.0L S55 Twin-Turbo Inline Six Engine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW M4 Convertible (F83)\u003c\/strong\u003e — 2014–2020 (3.0L S55 Twin-Turbo Inline Six Engine)\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\u003eEqual Length Serpentine Wave Bend Design:\u003c\/strong\u003e Special wavy serpentine piping balances exhaust path length for both cylinder banks, eliminates factory raspy exhaust noise completely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70mm Large Diameter SUS304 Tubing:\u003c\/strong\u003e 70mm full mandrel bent stainless steel pipe reduces backpressure, optimizes exhaust gas flow for better power and throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMirror Polished SUS304 Stainless Steel:\u003c\/strong\u003e High-grade corrosion and heat resistant steel with shiny polished surface, long service life under high-temperature driving conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSynchronized Exhaust Pulse Tuning:\u003c\/strong\u003e Matched pipe lengths align exhaust pulses, delivers clean, crisp high-pitched exotic straight-six racing tone without harsh drone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak-Proof Professional TIG Welding:\u003c\/strong\u003e Smooth seamless internal welds eliminate airflow turbulence, guarantee airtight connection at all joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Fitment:\u003c\/strong\u003e Precisely CNC engineered flanges and mounting points match factory positions, no cutting, welding or custom fabrication required.\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\u003e Premium SUS304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 70mm (2.75 Inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Structure:\u003c\/strong\u003e Equal Length Serpentine Wave Bend Midpipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Finish:\u003c\/strong\u003e Full Mirror Polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding Process:\u003c\/strong\u003e Full Professional TIG Seamless Weld\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Type:\u003c\/strong\u003e OEM Direct Bolt-On Replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine:\u003c\/strong\u003e S55 3.0L Twin-Turbo Inline Six\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\u003e1x Pair Equal Length Serpentine Stainless Steel Midpipe\u003c\/li\u003e\n\u003cli\u003eOEM Matching Connecting Adapter Sleeves\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003c!-- [if !supportLists]--\u003e\u003c!--[endif]--\u003e\u003cspan\u003eHeavy-Duty Installation Clamps \u0026amp; Hardware Kit\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wanmax Racing","offers":[{"title":"Default Title","offer_id":54913818460532,"sku":null,"price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/H74c55ad21bb54b6d9c02a308b4455005J.jpg?v=1783582635","url":"https:\/\/wanmaxracing.com\/products\/70mm-equal-length-ss304-serpentine-midpipe-exhaust-for-bmw-f80-m3-f82-m4-s55-3-0l-twin-turbo","provider":"Wanmax Racing","version":"1.0","type":"link"}