{"product_id":"fuel-it-bmw-s55-stage-4-fuel-system-upgrade-for-600-whp-m2-competition-m3-m4","title":"Fuel-It BMW S55 Stage 4 Fuel System Upgrade Kit - Port Injection + Dual LPFP, E85, 600+ whp - M2 Competition, M3, M4 (F87 F80 F82 F83) FI042","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eDiscontinued item\u003c\/strong\u003e: This listing is kept for reference. If you need a current high-output S55 fueling solution, we recommend the Precision Raceworks BMW S55 High Performance Fuel Pump for M2 Competition, M3 and M4.\u003c\/p\u003e\n  \n  \u003ch2\u003eFI042 S55 fuelling package - aux injection rail plus twin in-tank pumps for big power on ethanol\u003c\/h2\u003e\n  \n  \u003cp\u003eBuilding a serious F8x S55 and want consistent, ethanol-ready fuelling for hard use and daily drivability alike? This Fuel-It package combines manifold-mounted auxiliary injectors with a dual in-tank low side upgrade that is happy on E85. It delivers rock solid supply for aggressive calibrations while keeping OEM manners. Proven headroom for 600 plus wheel horsepower with stock or hybrid turbos on the F80 M3, F82 and F83 M4, and F87 M2 Competition.\u003c\/p\u003e\n  \n  \u003cp\u003eWe have fitted this setup to customer S55 builds and the feedback has been excellent - smooth idle, predictable fuel pressure under sustained boost and superb consistency on full E content. Exactly what tuners want when chasing reliable gains.\u003c\/p\u003e\n  \n  \u003ch3\u003eWhy enthusiasts choose this S55 fuelling solution\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHeadroom for 600+ whp on full corn E85 with factory or upgraded turbochargers\u003c\/li\u003e\n    \u003cli\u003eFlex-fuel friendly hardware - lines, filter and components are compatible with ethanol blends\u003c\/li\u003e\n    \u003cli\u003eTwin in-tank pumps for stable low-side supply at high load - also known as an LPFP upgrade\u003c\/li\u003e\n    \u003cli\u003eAuxiliary manifold injection adds the extra flow direct injection cannot provide at big power\u003c\/li\u003e\n    \u003cli\u003eReturn-style system with a 1:1 boost-referenced fuel pressure regulator for consistent control\u003c\/li\u003e\n    \u003cli\u003eInstalls without permanent modification in the intake manifold area\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eWhat you get in the box\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAuxiliary injection kit\u003c\/strong\u003e\n      \u003cul\u003e\n        \u003cli\u003eBlack anodised spacer plate for the intake manifold\u003c\/li\u003e\n        \u003cli\u003eBlack anodised fuel rail\u003c\/li\u003e\n        \u003cli\u003eAluminium and stainless hardware\u003c\/li\u003e\n        \u003cli\u003eSix Bosch 750 cc flow-matched injectors\u003c\/li\u003e\n        \u003cli\u003eSix BMW OEM gaskets\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual in-tank low-side upgrade\u003c\/strong\u003e\n      \u003cul\u003e\n        \u003cli\u003eOEM flex fuel pump\u003c\/li\u003e\n        \u003cli\u003eSecondary Walbro 450 pump\u003c\/li\u003e\n        \u003cli\u003eDual -6 AN ethanol-compatible feed lines\u003c\/li\u003e\n        \u003cli\u003eDual input E85-capable fuel filter\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReturn conversion\u003c\/strong\u003e\n      \u003cul\u003e\n        \u003cli\u003e1:1 boost-referenced fuel pressure regulator\u003c\/li\u003e\n        \u003cli\u003eReturn line\u003c\/li\u003e\n        \u003cli\u003eSilicone boost reference hose and fittings\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch4\u003eOptional add-ons\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e950 cc injectors\u003c\/li\u003e\n    \u003cli\u003eEthanol content kit with Bluetooth analyser\n      \u003cul\u003e\n        \u003cli\u003eContinental ethanol content sensor\u003c\/li\u003e\n        \u003cli\u003e3\/8 inch Cam-Lock fittings\u003c\/li\u003e\n        \u003cli\u003eBluetooth analyser - iPhone and Android apps purchased separately\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eColour note\u003c\/strong\u003e: Supplied with black intake couplers as standard. If you prefer red or blue, email us after ordering with your order number and preferred colour.\u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW M3 F80 2012 to 2015 and LCI 2015 onwards\u003c\/li\u003e\n    \u003cli\u003eBMW M4 F82 2013 onwards including LCI\u003c\/li\u003e\n    \u003cli\u003eBMW M4 F83 Convertible 2013 onwards including LCI\u003c\/li\u003e\n    \u003cli\u003eBMW M2 Competition F87 2019 onwards\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eEngine: S55. Platform: F8x.\u003c\/p\u003e\n  \n  \u003ch3\u003ePopular searches\u003c\/h3\u003e\n  \u003cp\u003eS55 fuelling upgrade kit, F80 F82 F83 F87 ethanol fuelling, BMW M3 M4 M2C flex fuel conversion, twin in-tank pump BMW S55, LPFP upgrade S55, return-style fuel system S55, auxiliary injection rail BMW, manifold injectors S55, Bosch 750cc injectors BMW S55, Walbro 450 pump BMW, E85 tune S55, fuel pressure regulator 1:1 S55, corn fuel S55, 600whp S55 fueling, ethanol content sensor BMW, Bluetooth ethanol analyser BMW, high flow low-side pump S55.\u003c\/p\u003e\n  \n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003eProfessional installation is strongly recommended. MJ Modifications offers fitting in Warwickshire - request a quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n  \u003cp\u003ePort Injection Controller guides are available from the manufacturer: \u003ca href=\"https:\/\/www.fuel-it.com\/port-injection-controller\/\" target=\"_blank\" rel=\"noopener\"\u003ehttps:\/\/www.fuel-it.com\/port-injection-controller\/\u003c\/a\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003ePre-dispatch compatibility check\u003c\/h3\u003e\n  \u003cp\u003eWe verify fitment before shipping. Please include your UK registration or the last 7 digits of your VIN at checkout.\u003c\/p\u003e\n  \n  \u003ch3\u003eImportant notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eFor off-road use only\u003c\/li\u003e\n    \u003cli\u003eEthanol sensors infer ethanol content by the absence of petrol - contaminated fuel may elevate readings\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eFI042\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Fuel-It_BMW_S55_Stage_4_Fuel_System_upgrade_for_600_whp_M2_Competition_M3_M4_-_Diagram_2048x2048.jpg?v=1594031999\" alt=\"FI042 S55 aux injection and twin pump fuelling kit for BMW F80 F82 F83 F87 - E85 compatible\" loading=\"lazy\"\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eBrand\u003c\/h3\u003e\n  \u003cp\u003eFuel-It\u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"Fuel-It","offers":[{"title":"Standard 750cc Injectors \/ Without Ethanol Sensor and Analyzer \/ Without Port Injection Controller","offer_id":55975623754114,"sku":null,"price":2799.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/FUEL-ITBMWS55STAGE4FUELSYSTEMUPGRADEFOR600_WHP_M2COMPETITION_M3_M4__01_1946x_161676d4-ffb5-4ec9-9238-dc86ddd46f01_1024x1024_2x-transformed.webp?v=1763322750","url":"https:\/\/mjmodifications.co.uk\/products\/fuel-it-bmw-s55-stage-4-fuel-system-upgrade-for-600-whp-m2-competition-m3-m4","provider":"MJ Modifications","version":"1.0","type":"link"}