{"product_id":"dorch-engineering-b58-stage-2-hpfp","title":"Dorch Engineering B58 Stage 2 HPFP Upgrade – High-Pressure Fuel Pump for BMW M140i M240i 340i 440i 540i 640i 740i X3\/X4 M40i (Gen 1 ≤2019) – Uprated High-Flow DI Pump, E85 Ready, Plug \u0026 Play","description":"\u003cdiv\u003e\n  \u003ch2\u003eStage 2 Uprated High-Pressure Fuel Pump for BMW B58 Engines\u003c\/h2\u003e\n  \u003cp\u003eUnlock dependable fueling headroom for serious power and ethanol blends with this Stage 2 high-pressure fuel pump from Dorch. Designed for the BMW B58 direct-injection platform, it delivers a major increase in high-side fuel volume for big-power street builds, hybrid or single turbo conversions and track-focused setups. It is a direct replacement that integrates with the factory ECU, so you keep all OEM safety strategies and drivability.\u003c\/p\u003e\n\n  \u003cp\u003eProven on our own cars and customer builds at MJ Modifications, this upgrade has been a standout for reliability and consistency. Expect support up to around 700 wheel horsepower on petrol and full E85 capability up to roughly 550 wheel horsepower, subject to calibration, turbo choice and fuel quality.\u003c\/p\u003e\n\n  \u003ch3\u003eWhy choose this B58 fueling upgrade\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eSignificant increase in high-side fuel delivery for demanding tunes and big turbo setups\u003c\/li\u003e\n    \u003cli\u003eEthanol ready for E50 to E85 mixtures within the stated power ranges\u003c\/li\u003e\n    \u003cli\u003eOEM-style control through the factory ECU for smooth cold starts and idle quality\u003c\/li\u003e\n    \u003cli\u003eNo permanent modifications required to lines or fittings\u003c\/li\u003e\n    \u003cli\u003eComplete kit with lines, hardware and plug-in harness for a tidy install\u003c\/li\u003e\n    \u003cli\u003eUsed in-house by MJ Modifications with excellent customer feedback\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eB58 pump flow comparisons\u003c\/h3\u003e\n  \u003cp\u003eReference fuel volume per camshaft revolution on the B58 cam lobe:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eHDP5 Evo, factory B58: 0.954 cc per rev\u003c\/li\u003e\n    \u003cli\u003eHDP6, factory B58TU: 1.178 cc per rev\u003c\/li\u003e\n    \u003cli\u003eDorch Stage 1: 1.299 cc per rev\u003c\/li\u003e\n    \u003cli\u003eDorch Stage 2: 1.558 cc per rev\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eActual capacity varies with cam design and tuning strategy.\u003c\/p\u003e\n\n  \u003ch3\u003eECU calibration notes\u003c\/h3\u003e\n  \u003cp\u003eSoftware changes are required. When using Bootmod3, MHD or MG Flasher, tick the option for the Dorch pump upgrade when flashing. If you are using alternative software, email your .BIN file to tuning@dorchengineering.com to have the required changes applied free of charge for Dorch customers.\u003c\/p\u003e\n\n  \u003ch3\u003eWhat is included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHigh-pressure fuel pump with mounting hardware\u003c\/li\u003e\n    \u003cli\u003eHigh-pressure line\u003c\/li\u003e\n    \u003cli\u003eQuick-connect low-pressure line\u003c\/li\u003e\n    \u003cli\u003eLow-pressure line bracket\u003c\/li\u003e\n    \u003cli\u003ePlug-in adapter harness\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVehicle applications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eF20 F21 - 140i, 140xi\u003c\/li\u003e\n    \u003cli\u003eF22 F23 - 240i, 240xi\u003c\/li\u003e\n    \u003cli\u003eF30 F31 F34 - 340i, 340xi\u003c\/li\u003e\n    \u003cli\u003eF32 F33 F36 - 440i, 440xi\u003c\/li\u003e\n    \u003cli\u003eG30 G31 - 540i, 540xi*\u003c\/li\u003e\n    \u003cli\u003eG32 - 640i, 640xi*\u003c\/li\u003e\n    \u003cli\u003eG11 G12 - 740i, 740xi*\u003c\/li\u003e\n    \u003cli\u003eG01 - X3 M40i*\u003c\/li\u003e\n    \u003cli\u003eG02 - X4 M40i*\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e* Only up to 2019 model year. Not compatible with 2020 and newer B58 vehicles.\u003c\/p\u003e\n\n  \u003ch3\u003eProfessional fitting\u003c\/h3\u003e\n  \u003cp\u003eWant it installed properly first time? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.\u003c\/p\u003e\n\n  \u003ch3\u003eSearch-friendly highlights\u003c\/h3\u003e\n  \u003cp\u003eBMW M140i fuel pump upgrade. M240i fueling solution. 340i and 440i high-pressure fuel pump. 540i 640i 740i DI pump upgrade. X3 M40i X4 M40i HPFP. B58 Gen 1 fueling kit. High-flow HPFP for hybrid turbo and single turbo builds. E85-ready B58 fuel system upgrade. Direct-injection performance pump. Plug-in replacement with OEM-level control. Ideal for Stage 2, Stage 2+ and custom calibrations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55975221756290,"sku":"DE-58-2001-14","price":1868.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/B58S2_HPFP_Rev2_800x600_1__25085.1632745520_79f029f9-068f-4438-ac89-2a527045173b.jpg?v=1763320878","url":"https:\/\/mjmodifications.co.uk\/products\/dorch-engineering-b58-stage-2-hpfp","provider":"MJ Modifications","version":"1.0","type":"link"}