{"product_id":"spool-performance-bmw-n55-fx-170-upgraded-high-pressure-fuel-pump","title":"Spool Performance BMW N55 FX-170 Upgraded High Pressure Fuel Pump","description":"\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eSpool Performance BMW N55 FX-170 Upgraded High Pressure Fuel Pump\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat is the FX-170?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe FX170 is an upgraded BMW n55 high pressure fuel pump for the 35i Single Turbo BMW motors. The pump features a bigger bore size than stock that translates into roughly 50% more flow when compared to stock. The pump is completely E85 compatible and fully plug and play with no cutting or splicing of any kind required. The added flow will let you run much higher ethanol concentrations and also allow fueling for bigger turbos.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy do you need it\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe stock HPFP on N55 motor is severely limited in capacity when trying to tune and raise the output of the motor. The FX-150 adds 50% more flow to the equation, raising the fueling limits on the platform and helping you run bigger turbos and\/or higher ethanol concentration blends.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTune changes\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe upgraded pumps do require calibration changes. It is important to apply these changes prior to starting the car with pump installed to avoid any possible damage and void of warranty. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSpool Performance can provide calibration details to your existing tuner and\/or help you connect with established tuners who are experienced with these pumps. Custom tuning is required to get maximum output out of the upgraded pump setup for your specific vehicle setup and ambient conditions. Spool Performance is a hardware manufacturer and does not provide custom tunes, but can assist with questions your tuner may have.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Pressure Fuel Pump Upgrade:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProper low pressure fueling is extremely important for proper functioning and durability of the high pressure pumps and injectors in a DI system. Inadequate low pressure fueling can cause damage to the pump piston and bore as they are lubricated by controlled leakage of fuel. Resulting damage from low pressure starvation is detectable and would be cause for voided warranties. Please make sure you plan out your fuel system build with proper low pressure upgrades when necessary.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease Note: \u003c\/strong\u003eFor customers with E9X chassis 335i or E8X 135i made before \u003cspan data-mce-fragment=\"1\"\u003e03\/2012\u003c\/span\u003e, you will need the \u003ca href=\"https:\/\/www.mlperformance.co.uk\/products\/spool-performance-bmw-n54-n55-e90-e91-e92-e93-335i-helix-hpfp-overdrive-unit\" title=\"Spool Performance BMW N54 N55 E90 E91 E92 E93 335i Helix HPFP Overdrive Unit.\" data-mce-href=\"https:\/\/www.mlperformance.co.uk\/products\/spool-performance-bmw-n54-n55-e90-e91-e92-e93-335i-helix-hpfp-overdrive-unit\" target=\"_blank\"\u003e\u003cspan style=\"color: #2b00ff;\" data-mce-style=\"color: #2b00ff;\"\u003e\u003cspan style=\"text-decoration: underline;\" data-mce-style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSpool Performance BMW N54 N55 E90 E91 E92 E93 335i Helix HPFP Overdrive Unit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1272\/9301\/files\/Spool_Performance_BMW_N55_FX-170_Upgraded_High_Pressure_Fuel_Pump-5.webp?v=1728888964\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW N55 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cstyle\u003e\u003c!--\n.compatibility-tab {\n    position: relative;\n    width: 100%;\n    overflow: hidden;\n    padding: 5px 0;\n    border-top: 1px solid #cdcdcd;\n    \u0026:nth-last-child(1) {\n    border-bottom: 1px solid #cdcdcd;\n  }\n  }\n  .compatibility-tab label {\n    position: relative;\n    display: block;\n    padding: 0 25px 0 0;\n    margin-bottom: 3px;\n    font-size: 15px;\n    line-height: normal;\n    cursor: pointer;\n  }\n  .compatibility-tab input {\n    position: absolute;\n    opacity: 0;\n    z-index: -1;\n  }\n  .compatibility-tab-content {\n    max-height: 0;\n    overflow: hidden;\n    transition: max-height .35s;\n  }\n  \/* :checked *\/\n  .compatibility-tab input:checked ~ .compatibility-tab-content {\n    max-height: none;\n  }\n  \/* Icon *\/\n  .compatibility-tab label::after {\n    position: absolute;\n    color: #B79F37;\n    font-size: 20px;\n    right: 0;\n    top: 0;\n    display: block;\n    -webkit-transition: all .35s;\n    -o-transition: all .35s;\n    transition: all .35s;\n  }\n  .compatibility-tab input[type=checkbox] + label::after {\n    content: \"+\";\n  }\n  .compatibility-tab input[type=radio] + label::after {\n    content: \"\\25BC\";\n  }\n  .compatibility-tab input[type=checkbox]:checked + label::after {\n    transform: rotate(315deg);\n  }\n  .compatibility-tab input[type=radio]:checked + label::after {\n    transform: rotateX(180deg);\n  }\n--\u003e\u003c\/style\u003e\n\u003cdiv class=\"compatibility-accordion-wrapper\"\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput id=\"compatibility-tab-1\" type=\"checkbox\" name=\"tabs\"\u003e \u003clabel for=\"compatibility-tab-1\"\u003e\u003cb\u003e1 Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eE82 Coupe (\u003cspan data-mce-fragment=\"1\"\u003e03\/2012\u003c\/span\u003e-2013)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e135i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eE88 Convertible (\u003cspan data-mce-fragment=\"1\"\u003e03\/2012\u003c\/span\u003e-2013)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e135i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF20   (2011 — 2015)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eM135i \u0026amp; M135ix\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF21   (2011 — 2015)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eM135i \u0026amp; M135ix\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF20 LCI   (09\/2015 — 06\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM135i \u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M135ix\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan\u003eF21 LCI  \u003c\/span\u003e\u003cspan\u003e (09\/2015 — 06\/2019)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM135i \u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M135ix\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput id=\"compatibility-tab-2\" type=\"checkbox\" name=\"tabs\"\u003e \u003clabel for=\"compatibility-tab-2\"\u003e\u003cb\u003e2 Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eF22   (09\/2015 — 06\/2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM235i \u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M235ix\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF22 LCI   (09\/2016 — 12\/2019)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM235i\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M235ix\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF23   (09\/2015 — 06\/2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM235i\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M235ix\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF23 LCI   (10\/2016 — 12\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM235i\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u0026amp; M235ix\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF87 M2 (2014-2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF87 M2 (2016+)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eM2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput id=\"compatibility-tab-3\" type=\"checkbox\" name=\"tabs\"\u003e \u003clabel for=\"compatibility-tab-3\"\u003e\u003cb\u003e3 Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eF30 (2011-2016)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e328i \u0026amp; 335i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF30 LCI   (10\/2014 — 10\/2018)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e328i \u0026amp; 335i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF31 (2011-2016)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e328i \u0026amp; 335i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF31 LCI   (10\/2014 — 06\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e328i \u0026amp; 335i\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compatibility-tab\"\u003e\n\u003cinput id=\"compatibility-tab-4\" type=\"checkbox\" name=\"tabs\"\u003e\u003clabel for=\"compatibility-tab-4\"\u003e\u003cb\u003e4 Series\u003c\/b\u003e\u003c\/label\u003e\n\u003cdiv class=\"compatibility-tab-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eF32   (2013 — 02\/2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF32 LCI   (05\/2016 — 12\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF33   (03\/2015 — 02\/2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF33 LCI   (05\/2016 — 12\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF36 Gran Coupé   (03\/2015 — 02\/2017)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eF36 Gran Coupé LCI   (05\/2016 — 12\/2019)\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e435i \u0026amp; 435ix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003eCompatibility Check\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eTo ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eSP-FX-170-N55\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eMore Information\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eManufactured by\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSpool Performance\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"No Ethanol Analyzer Needed \/ Include 10 Micron Filter Unit","offer_id":48758959603937,"sku":"SP-FX-170-N55-NEYFSDF","price":1292.0,"currency_code":"GBP","in_stock":true},{"title":"No Ethanol Analyzer Needed \/ Without 10 Micron Filter Unit","offer_id":48758959636705,"sku":"SP-FX-170-N55-NENFSDG","price":1051.0,"currency_code":"GBP","in_stock":true},{"title":"I will be installing my existing Spool Ethanol Analyzer Kit \/ Include 10 Micron Filter Unit","offer_id":48758959669473,"sku":"SP-FX-170-N55-EENF564","price":1292.0,"currency_code":"GBP","in_stock":true},{"title":"I will be installing my existing Spool Ethanol Analyzer Kit \/ Without 10 Micron Filter Unit","offer_id":48758959702241,"sku":"SP-FX-170-N55-EENF65F","price":1583.0,"currency_code":"GBP","in_stock":true},{"title":"Included Wireless Ethanol Analyzer Kit \/ Include 10 Micron Filter Unit","offer_id":48758959735009,"sku":"SP-FX-170-N55-YENF66SD4","price":1425.0,"currency_code":"GBP","in_stock":true},{"title":"Included Wireless Ethanol Analyzer Kit \/ Without 10 Micron Filter Unit","offer_id":48758959767777,"sku":"SP-FX-170-N55-YENFSD4","price":1313.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/7608\/4961\/files\/SpoolPerformanceBMWN55FX-170UpgradedHighPressureFuelPump-1.webp?v=1784862743","url":"https:\/\/mlperformanceusa.com\/products\/spool-performance-bmw-n55-fx-170-upgraded-high-pressure-fuel-pump","provider":"ML Performance USA","version":"1.0","type":"link"}