{"product_id":"f-series-auxiliary-fuel-system-b58","title":"F-Series Auxiliary Fuel System B58\/S55","description":"\u003cp class=\"MsoNormal\"\u003eThe Precision Raceworks \u003cb\u003eF-Series (F3x\/F2x) B58 Stand Alone AFS™\u003c\/b\u003e is the highest performing and most stable low pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eSince direct injection came out on modern BMW's, enthusiasts have been adding port injection. With this came the need to upgrade the low-pressure fuel system to keep up. Historically this was done by increasing the output of the main fuel system. Unfortunately, the main fuel pump is controlled using PWM by a factory programmed controller designed to reduce output when target fuel pressure (typically 5 bar) is exceeded, creating a constant battle when pumps are added or upgraded. This limits upgraded fuel pumps from performing to their full potential.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eAdditionally, the high pressure pump control system dumps fuel back into the low pressure system at high pressure low volume resulting in oscillations of the low pressure fuel system. Because of this the DI system in the car is required to constantly make corrections to keep target AFR in check.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eWith this stand-alone low-pressure fuel system dedicated to your port fueling that is a thing of the past! Get rock solid fuel pressures at any pressure, run fuel pressures which are 1:1 scalable to boost pressure, flow more fuel with dedicated lines, run smaller injectors and still get more fuel than you did with large injectors (allowing for higher resolution), put less demand on the car’s DI system to correct for fluctuations in pressure, even your tuner will be grateful as the system makes tuning of port fueling even easier and more accurate, the list of benefits goes on and on!\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"text-align: center;\"\u003e\u003cb\u003eFeatures \u0026amp; Benefits\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0in;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eBillet Aluminum top hat with 3 high flow fuel ports\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eDedicated fuel pump for port injection system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eFully adjustable 1:1 scaling billet fuel pressure regulator\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e10 micron USA made Micro-glass fuel filter (Ideal for E85)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eSmooth bore high flow PTFE fuel feed \u0026amp; return lines (AN6)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eAll billet connections for both fuel line fittings and top-hat\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eConfigurable pump activation harness (see instructions for more details)\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eIncreased injector flow (when using 1:1 regulator feature vs static)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003eAll components and parts feature 100% Ethanol Compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"text-align: center;\"\u003e\u003cb\u003eModels \u0026amp; Configurations\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0in;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eAFS.425\u003c\/b\u003e\u003cbr\u003eThe AFS.425 dedicated AFS™ comes with all necessary components to provide dedicated fuel system for port injection. Featuring a single Walbro 450 (F9000274) fuel pump which flows 425LPH at 3 bar.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eAFS.450\u003c\/b\u003e\u003cbr\u003eThe AFS.450 dedicated AFS™ comes with all necessary components to provide dedicated fuel system for port injection. Featuring a single Walbro 525 (F90000285) fuel pump which flows 450LPH at 3 bar.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list .5in;\"\u003e\n\u003cb\u003eAFS.460\u003c\/b\u003e\u003cbr\u003eThe AFS.460 dedicated AFS™ comes with all necessary components to provide dedicated fuel system for port injection. Featuring a single Walbro 535 (F9000295) fuel pump which flows 460LPH at 3 bar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003eIf your tuner wishes for you to have Solid State Relays, we recommend using our kit \u003ca href=\"https:\/\/precisionraceworks.com\/products\/solid-state-relay-upgrade-kit\" target=\"_blank\"\u003ehere\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e*At time of install some wiring in the car will need to be cut and spliced to connectors included in this kit.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 12.0pt; line-height: 115%; font-family: 'Aptos',sans-serif; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Aptos; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;\"\u003e**The AFS™ kits are designed for use with a port injection kit where the fuel rail is mounted above the manifold. To run this kit with a plate style PI, please reach out for modification instructions.\u003c\/span\u003e\u003c\/p\u003e","brand":"Precision Raceworks","offers":[{"title":"AFS.425 -(Walbro450)","offer_id":50588174647489,"sku":"601-0394","price":1999.99,"currency_code":"USD","in_stock":true},{"title":"AFS.450 - (Walbro525)","offer_id":50588174680257,"sku":"601-0397","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"AFS.460 - (Walbro535)","offer_id":50588174713025,"sku":"601-0398","price":2099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0540\/5596\/0769\/files\/F-SeriesAFSB58_Main.jpg?v=1789412424","url":"https:\/\/precisionraceworks.com\/en-ca\/products\/f-series-auxiliary-fuel-system-b58","provider":"Precision Raceworks, LLC","version":"1.0","type":"link"}