{"product_id":"turbosmart-bmw-135i-335i-535i-z4-w-n54-twin-turbo-3-0l-kompact-plumb-back-kit","title":"Turbosmart BMW 135i\/335i\/535i\/Z4 w\/ N54 Twin Turbo 3.0L Kompact Plumb Back Kit","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eTS-0203-1250\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 9329677012040\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eTurbosmart BMW 135i\/335i\/535i\/Z4 w\/ N54 Twin Turbo 3.0L Kompact Plumb Back Kit\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Turbosmart Kompact Plumb Back Kit replaces factory diverter valves on BMW N54 twin turbo 3.0L engines in 135i, 335i, 535i and Z4 models. It recirculates excess boost safely back into the intake pipe to prevent compressor surge and protect turbos during shifts. Built for high boost applications, this kit delivers consistent performance and reliability on tuned or stock setups.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin Port Design:\u003c\/strong\u003e Manages boost discharge from both N54 turbos independently for precise control and no lag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet 6061 Aluminum Body:\u003c\/strong\u003e Lightweight at 1.32 lbs with anodized finish for corrosion resistance and long-term durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlumb Back Venting:\u003c\/strong\u003e Returns air to intake pipe silently without atmospheric noise or oil residue in intercooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Fit:\u003c\/strong\u003e Includes brackets, hoses and fittings for plug-and-play install on all listed N54 models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Spring Preload:\u003c\/strong\u003e Three spring options included to match boost levels from stock to 30+ PSI\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires removal of factory diverter valves during installation\u003c\/li\u003e\n\u003cli\u003ePair with upgraded intake pipes for best results on high boost setups\u003c\/li\u003e\n\u003cli\u003eShips in protective foam packaging to prevent damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eDisconnect battery and depressurize system before starting\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware and O-rings included for OEM-like mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e1 Series 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Coupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2008\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003eM Roadster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2008\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003eRoadster 3.0i\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006-2008\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003eRoadster 3.0si\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2011\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003esDrive30i\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003esDrive35i\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4\u003c\/td\u003e\n\u003ctd\u003esDrive35is\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Turbosmart?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHand-crafted in Sydney Australia since 1997 with strict quality control\u003c\/li\u003e\n\u003cli\u003eRigorous testing in dedicated research facility for real-world reliability\u003c\/li\u003e\n\u003cli\u003eProven design formula used across motorsport and street performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my 2010 BMW 335i with N54 engine?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it bolts directly to N54 twin turbo setup on 2007-2013 335i models including xDrive variants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the valve made from?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Precision machined from billet 6061-T6 aluminum with stainless steel springs for strength and heat resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty does it come with?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Backed by Turbosmart limited lifetime warranty against manufacturing defects when installed correctly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure box 10 x 8 x 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.32 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Turbosmart","offers":[{"title":"Default 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