{"product_id":"dorch-engineering-n55-stage-2-hpfp","title":"Dorch Engineering N55 Stage 2 HPFP","description":"\u003cdiv\u003e\n  \u003ch2\u003eUprated high-pressure fuel solution for BMW N55 turbo engines\u003c\/h2\u003e\n  \u003cp\u003eChasing reliable power on your N55? This premium direct-injection pump upgrade delivers the fuel volume serious builds demand. Ideal for big-turbo or hybrid setups, it supports around 650 wheel horsepower on petrol and enables full E85 capability up to roughly 500 whp depending on calibration, hardware and fuel quality. It is a genuine drop-in upgrade with OEM-like drivability and control.\u003c\/p\u003e\n\n  \u003cp\u003eWe run this upgrade on our own cars and have installed it for many customers. Feedback is consistently strong: stock-like cold starts, smooth part-throttle manners and the fuelling headroom needed for aggressive boost targets and ethanol blends.\u003c\/p\u003e\n\n  \u003ch3\u003eWhy enthusiasts choose this pump\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTrue plug-in fitment with no cutting, bending or crimping\u003c\/li\u003e\n    \u003cli\u003eDirect ECU control via the factory DME, retaining all safety strategies\u003c\/li\u003e\n    \u003cli\u003eMassive increase in direct-injection flow for high power and ethanol use\u003c\/li\u003e\n    \u003cli\u003ePerfect for road, track and fast-road builds needing dependable fuelling\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eReference flow data\u003c\/h3\u003e\n  \u003cp\u003eApproximate maximum fuel volume per camshaft revolution on the N55 cam lobe:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eHDP5 stock N55: 0.837 cc per rev\u003c\/li\u003e\n    \u003cli\u003eHDP5 Evo stock B58: 0.897 cc per rev\u003c\/li\u003e\n    \u003cli\u003eHDP6 stock B58TU: 1.107 cc per rev\u003c\/li\u003e\n    \u003cli\u003eDorch Stage 1: 1.221 cc per rev\u003c\/li\u003e\n    \u003cli\u003eDorch Stage 2: 1.465 cc per rev\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eReal-world capacity varies with calibration strategy, fuel type and hardware.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHigh-pressure pump with mounting hardware\u003c\/li\u003e\n    \u003cli\u003eHigh-pressure line\u003c\/li\u003e\n    \u003cli\u003eLow-pressure line\u003c\/li\u003e\n    \u003cli\u003eLow-pressure line bracket\u003c\/li\u003e\n    \u003cli\u003ePlug-and-play adapter harness\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTuning and software\u003c\/h3\u003e\n  \u003cp\u003eSoftware changes are required when fitting this pump.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eUsing MHD or bootmod3: tick the pump upgrade option when flashing\u003c\/li\u003e\n    \u003cli\u003eOtherwise: email your .BIN to tuning@dorchengineering.com for the required changes, free for pump customers\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVehicle compatibility\u003c\/h3\u003e\n  \u003cp\u003eSuits a wide range of BMW models equipped with the N55 engine:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eF87 M2\u003c\/li\u003e\n    \u003cli\u003eF20 F21 135i 135xi\u003c\/li\u003e\n    \u003cli\u003eF22 F23 235i 235xi\u003c\/li\u003e\n    \u003cli\u003eF30 F31 F34 335i 335xi\u003c\/li\u003e\n    \u003cli\u003eF32 F33 F36 435i 435xi\u003c\/li\u003e\n    \u003cli\u003eF10 F11 535i 535xi *\u003c\/li\u003e\n    \u003cli\u003eF25 F26 X3 35i, X4 35i *\u003c\/li\u003e\n    \u003cli\u003eF15 F16 X5 35i, X6 35i\u003c\/li\u003e\n    \u003cli\u003eE8X 135i *\u003c\/li\u003e\n    \u003cli\u003eE9X 335i *\u003c\/li\u003e\n    \u003cli\u003eE84 X1 35i *\u003c\/li\u003e\n    \u003cli\u003eE70 E71 X5 35i, X6 35i *\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e* Only for 2013 and newer models fitted with the OE Bosch high-pressure pump.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eNot compatible with 2011–2012 N55 vehicles.\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eIdeal search terms and use cases\u003c\/h3\u003e\n  \u003cp\u003eBMW N55 fuel pump upgrade, uprated DI pump, high-pressure fuel pump for M2 235i 335i 435i 535i, F-series N55 fueling solution, ethanol safe E85 E50 builds, big turbo N55 fuelling, plug and play HP fuel pump, N55 direct injection upgrade for track and road.\u003c\/p\u003e\n\n  \u003ch3\u003eProfessional installation\u003c\/h3\u003e\n  \u003cp\u003eWant it fitted by specialists? MJ Modifications in Warwickshire can install, set up and coordinate your tuning. Email info@mjmodifications.co.uk for a quote.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55975221920130,"sku":"DE-55-2001A","price":1850.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/N55-HPFP-Kit-Rev2-800x600-1_1__16535.1632745355_14edeedc-75ab-4530-bfa5-a02cd30f9d2e.jpg?v=1763320883","url":"https:\/\/mjmodifications.co.uk\/products\/dorch-engineering-n55-stage-2-hpfp","provider":"MJ Modifications","version":"1.0","type":"link"}