{"product_id":"bmw-f-series-n55-n20-stage-3-5-lpfp-walbro-450-535-950-whp","title":"BMW F-Series N55 N20 Stage 3.5 LPFP Upgrade - Walbro 450 + 535 - 950 WHP","description":"\u003cp\u003eTake your \u003cstrong\u003eBMW F-Series N55 or N20\u003c\/strong\u003e to the next level with the OneFastShop Stage 3.5 Dual Walbro 450 + 535 Low Pressure Fuel Pump (LPFP) assembly. Designed for high-boost, ethanol-based, and port-injected builds, this complete plug-and-play LPFP upgrade delivers the fuel volume required to support up to \u003cstrong\u003e950 WHP on pump gas\u003c\/strong\u003e or \u003cstrong\u003e875 WHP on full E85\u003c\/strong\u003e. Direct replacement for BMW OEM part #16117243975.\u003c\/p\u003e\n\n\u003cp\u003eThe dual pump system pairs a \u003cstrong\u003eWalbro F90000274 450LPH\u003c\/strong\u003e primary pump with a \u003cstrong\u003eWalbro F90000295 535LPH\u003c\/strong\u003e secondary pump and includes a boost-referenced pressure switch (Hobbs switch) for automatic secondary pump activation. Arrives fully pre-assembled with all wiring, fittings, and hardware pre-configured - no splicing, cutting, or crimping required. Compatible with Reflex and Pro EFI controllers, and suitable for stock or heavily modified applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports up to 950 WHP on pump gas \/ 875 WHP on E85\u003c\/li\u003e\n  \u003cli\u003eDual pump assembly: 1x Walbro 450LPH (F90000274) + 1x Walbro 535LPH (F90000295)\u003c\/li\u003e\n  \u003cli\u003eBoost-referenced pressure switch (Hobbs switch) for automatic secondary pump activation\u003c\/li\u003e\n  \u003cli\u003e100% plug-and-play - no wiring modifications, splicing, or cutting required\u003c\/li\u003e\n  \u003cli\u003eComplete OEM-replacement fuel bucket with top hat and float assembly\u003c\/li\u003e\n  \u003cli\u003eE85-compatible for ethanol and flex-fuel builds\u003c\/li\u003e\n  \u003cli\u003eCompatible with Reflex and Pro EFI controllers\u003c\/li\u003e\n  \u003cli\u003eSuitable for port injection and upgraded turbo setups\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for BMW OEM #16117243975\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003ctable\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\u003eChassis\u003c\/th\u003e\n      \u003cth\u003eEngine\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e228i \/ 228i xDrive\u003c\/td\u003e\n\u003ctd\u003eF22 \/ F23\u003c\/td\u003e\n\u003ctd\u003eN20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM235i \/ M235i xDrive\u003c\/td\u003e\n\u003ctd\u003eF22 \/ F23\u003c\/td\u003e\n\u003ctd\u003eN55\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2016-2018\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003eF87\u003c\/td\u003e\n\u003ctd\u003eN55\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2013-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e320i \/ 320i xDrive\u003c\/td\u003e\n\u003ctd\u003eF30\u003c\/td\u003e\n\u003ctd\u003eN20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2012-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e328i \/ 328i xDrive\u003c\/td\u003e\n\u003ctd\u003eF30 \/ F31\u003c\/td\u003e\n\u003ctd\u003eN20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2012-2015\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e335i \/ 335i xDrive\u003c\/td\u003e\n\u003ctd\u003eF30 \/ F31\u003c\/td\u003e\n\u003ctd\u003eN55\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e328i GT xDrive\u003c\/td\u003e\n\u003ctd\u003eF34\u003c\/td\u003e\n\u003ctd\u003eN20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e335i GT xDrive\u003c\/td\u003e\n\u003ctd\u003eF34\u003c\/td\u003e\n\u003ctd\u003eN55\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e428i \/ 428i xDrive (incl. Gran Coupe)\u003c\/td\u003e\n\u003ctd\u003eF32 \/ F33 \/ F36\u003c\/td\u003e\n\u003ctd\u003eN20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2014-2016\u003c\/td\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e435i \/ 435i xDrive (incl. Gran Coupe)\u003c\/td\u003e\n\u003ctd\u003eF32 \/ F33 \/ F36\u003c\/td\u003e\n\u003ctd\u003eN55\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN55STG35LPFP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePumps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1x Walbro 450LPH (F90000274) + 1x Walbro 535LPH (F90000295)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM Replacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBMW #16117243975\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Power Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e950 WHP (pump gas) \/ 875 WHP (E85)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecondary Pump Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBoost-referenced pressure switch (Hobbs switch)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e91-93 octane, E85, ethanol blends, methanol injection\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eController Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReflex, Pro EFI\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlug-and-play, no wiring modifications\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Walbro 450 fuel pump (F90000274)\u003c\/li\u003e\n  \u003cli\u003e1x Walbro 535 fuel pump (F90000295)\u003c\/li\u003e\n  \u003cli\u003eComplete replacement fuel bucket with top hat and float\u003c\/li\u003e\n  \u003cli\u003eBoost-referenced pressure switch (Hobbs switch)\u003c\/li\u003e\n  \u003cli\u003ePositive and negative trigger wiring harnesses\u003c\/li\u003e\n  \u003cli\u003eBMW secondary fuel pump activation harness\u003c\/li\u003e\n  \u003cli\u003eIn-tank filters, fittings, O-ring, and test plug\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OneFastShop","offers":[{"title":"Default Title","offer_id":44466829000876,"sku":"N55STG35LPFP","price":790.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0480\/2160\/2467\/files\/1_b52ddaca-059d-4afe-918c-d5fa04a86071.png?v=1752388910","url":"https:\/\/onefastshop.com\/products\/bmw-f-series-n55-n20-stage-3-5-lpfp-walbro-450-535-950-whp","provider":"OneFastShop","version":"1.0","type":"link"}