Stainless Steel M8x1.25 Mounting Bolts, Long (x4) Phenolic Thermal Insulating Press-In Bolt Washers (x4) Phenolic Thermal Insulating Press-In Spacers, Short (x4) Phenolic Thermal Insulating Press-In Spacers, Tall (x4) Black Anodized Laser Etched Aluminum Fuel Rails (x2) The fuel rail kits are compatible with all fuel types including popular alcohol mixtures such as E85. All must use 11mm diameter upper O-rings just like the OEM Subaru top feed injectors. Two sets of these press-fit phenolic spacers (8 total) and matching hardware are included to suit different height fuel injectors. All 3 ports on each fuel rail are tapped with -8AN ORB.įor thermal insulation, machined phenolic spacers and washers are included to completely isolate the fuel rail from heat transfer via the TGV housings and mounting bolts. They are CNC machined from solid 6061 aluminum, black anodized, and laser etched for a high quality surface finish. JDM STi Spec-C Intake Manifold (when used with this adapter HERE)Įach rail features a large internal diameter bore to suit even the most fuel hungry engines. These adapters can be used in any of the ports and permits properly clocking for appropriate fitment.Depending on the vehicle's country of origin, this fuel rail kit is compatible with the following Subaru models:Ģ002-2014 Impreza WRX (that came with top feed injectors)Ģ007-2015 Impreza WRX STi (that came with top feed injectors)Ģ007-2012 Legacy GT (that came with top feed injectors)Ģ007-2012 Outback XT (that came with top feed injectors)Ģ006-2013 Forester XT (that came with top feed injectors) The 20-0301 OEM FPR adapter is commonly used with EJ20 engines and 20-0303 is used with EJ25 engines (excluding STi). If the OEM 2-bolt flanged FPR will be reused, select one of the OEM FPR options above. The optional Radium 20-0176 fuel pulse damper can be used in any of the three -8AN ORB ports on these fuel rails. This correction can be measured throughout the RPM range and can often help an erratic surging idle. The internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. The opening and closing of the injectors creates pressure pulses in the fuel rail, which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a pulse damper should be used (especially with high flow injectors). NOTE: Neither fuel rail kit comes with hoses. The other two plugs can be used for the lower center ports if a fuel pulse damper is not used. Refer to the More Details tab above for more information. If -8AN male fittings are required, they can be purchased here 14-0152. Two of the plugs can be used if the fuel rails will be plumbed in "Parallel, Dead End", as shown. The 20-0335-01 kit includes enough to plumb the rails in "Parallel, Flow-Through" or "Series". They are anodized and laser etched and are designed for 14mm diameter lower O-ring injectors. This fuel rail conversion kit is compatible with all fuel types including popular alcohol mixtures such as E85. The four included machined injector seats press into the intake manifold and seal air tight. Machined phenolic mounting spacers and washers are included to completely isolate the fuel rail from heat transferred from intake manifold and mounting bolts. All 6 fuel rail ports are tapped with 8AN ORB (3/4"-16) threads They are CNC machined from solid 6061 aluminum, black anodized, and laser engraved for a high quality surface finish. Each rail features a large internal bore to suit even the most fuel hungry engines. The fuel rail injector bores are 14mm ID. It converts the OEM side feed fuel injector setup to top feed, allowing the use of high flow fuel injectors (not included). Phenolic Thermal Insulating Press-In Spacers (x4) Black Anodized and Laser Etched Injector Seats (x4) Black Anodized Version 1-6 Conversion Fuel Rail Mount (x2) This fuel rail conversion kit is compatible with the Version 1-6 Subaru 4-cylinder engines including the popular JDM STi EJ207 and Twin Turbo Legacy GT-B EJ208.
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