{"product_id":"f-series-afs-diy-kit","title":"F-Series AFS DIY Kit","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eF-Series (F3x\/F2x) B58 Stand Alone AFS™ – DIY Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https:\/\/precisionraceworks.com\/products\/f-series-afs-upgrade-kit\"\u003e\u003cstrong\u003eFor use with a stock OEM pump. If you have an existing Stage 3, Stage 4 or 4.5 click \u003cspan style=\"text-decoration: underline;\"\u003ehere.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe Precision Raceworks \u003cstrong\u003eF-Series (F3x\/F2x) B58 Stand Alone AFS™ DIY Kit\u003c\/strong\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 dir=\"auto\"\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 dir=\"auto\"\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 dir=\"auto\"\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 dir=\"auto\"\u003eThis DIY kit supplies the dual-output billet top hat, in-tank plumbing, auxiliary pump of your choice, and the complete auxiliary-side line set so you can build a dedicated AFS™ on the F-Series B58. Both the DI circuit and the auxiliary circuit are protected by a 10 micron USA made Micro-glass fuel filter.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eBillet Aluminum top hat with 2 feed ports and 1 return port\u003c\/li\u003e\n\u003cli\u003eDedicated 10 micron USA made Micro-glass fuel filter on the DI side\u003c\/li\u003e\n\u003cli\u003eDedicated 10 micron USA made Micro-glass fuel filter on the auxiliary side\u003c\/li\u003e\n\u003cli\u003eDedicated auxiliary fuel pump for port injection \u003c\/li\u003e\n\u003cli\u003eAux pump mounting hardware and in-tank plumbing included\u003c\/li\u003e\n\u003cli\u003eFully adjustable 1:1 scaling billet fuel pressure regulator\u003c\/li\u003e\n\u003cli\u003eSmooth bore high flow PTFE auxiliary fuel feed \u0026amp; return lines (AN6)\u003c\/li\u003e\n\u003cli\u003eAll billet connections for both fuel line fittings and top-hat\u003c\/li\u003e\n\u003cli\u003eConfigurable pump activation harness (see instructions for more details)\u003c\/li\u003e\n\u003cli\u003eIncreased injector flow (when using 1:1 regulator feature vs static)\u003c\/li\u003e\n\u003cli\u003eCompatible with all stock or upgraded primary fuel pumps\u003c\/li\u003e\n\u003cli\u003eEasily expandable and upgrade-able for more fuel\u003c\/li\u003e\n\u003cli\u003eAll components and parts feature 100% Ethanol Compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eModels \u0026amp; Configurations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFS.425\u003c\/strong\u003e\u003cbr\u003eThe AFS.425 DIY kit comes with all** necessary components to build a dedicated fuel system for port injection. Featuring a single Walbro 450 (F9000274) auxiliary fuel pump which flows 425LPH at 3 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFS.450\u003c\/strong\u003e\u003cbr\u003eThe AFS.450 DIY kit comes with all** necessary components to build a dedicated fuel system for port injection. Featuring a single Walbro 525 (F90000285) auxiliary fuel pump which flows 450LPH at 3 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFS.460\u003c\/strong\u003e\u003cbr\u003eThe AFS.460 DIY kit comes with all** necessary components to build a dedicated fuel system for port injection. Featuring a single Walbro 535 (F9000295) auxiliary fuel pump which flows 460LPH at 3 bar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDIY Kit Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eF-Series billet aluminum top hat with 2 feed ports and 1 return port\u003c\/li\u003e\n\u003cli\u003e10 micron USA made Microglass fuel filter for the DI side\u003c\/li\u003e\n\u003cli\u003eAuxiliary pump of your choice \u003c\/li\u003e\n\u003cli\u003eAuxiliary pump mounting hardware\u003c\/li\u003e\n\u003cli\u003eIn-tank plumbing\u003c\/li\u003e\n\u003cli\u003eAuxiliary fuel feed \u0026amp; return lines\u003c\/li\u003e\n\u003cli\u003eFully adjustable 1:1 scaling billet fuel pressure regulator\u003c\/li\u003e\n\u003cli\u003e10 micron USA made Microglass fuel filter for the auxiliary side\u003c\/li\u003e\n\u003cli\u003eMounting hardware for the auxiliary components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eIf your tuner wishes for you to have a Solid State Relay, we recommend using our kit \u003ca href=\"https:\/\/precisionraceworks.com\/products\/solid-state-relay-upgrade-kit\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e*Installation of this kit requires cutting and splicing factory wiring to the connectors included. Plug and play harness options are not available for F-Series AFS™.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e**The AFS™ kits are designed for use with a port injection kit where the fuel rail is mounted above the manifold. To use with a plate style spacer PI, please reach out to us directly at 713-770-6977 or \u003ca href=\"mailto:sales@precisionraceworks.com\" rel=\"noopener noreferrer nofollow\" target=\"_blank\"\u003esales@precisionraceworks.com\u003c\/a\u003e\u003c\/p\u003e","brand":"Precision Raceworks, LLC","offers":[{"title":"AFS .425","offer_id":50644379238593,"sku":"601-0402","price":1599.99,"currency_code":"USD","in_stock":false},{"title":"AFS .450","offer_id":50644379271361,"sku":"601-0403","price":1699.99,"currency_code":"USD","in_stock":false},{"title":"AFS .460","offer_id":50644379304129,"sku":"601-0404","price":1699.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0540\/5596\/0769\/files\/F-SeriesAFS_DIY.jpg?v=1790275671","url":"https:\/\/precisionraceworks.com\/products\/f-series-afs-diy-kit","provider":"Precision Raceworks, LLC","version":"1.0","type":"link"}