Manufactured with a large internal bore, the fuel rails can support all necessary engine power requirements. They are CNC machined from solid 6061 aluminum, black anodized, and laser etched for a high quality surface finish.
These fuel rails are designed specifically for OEM or equivalent fitment injectors. For injector height flexibility and thermal insulation, 2 sets of machined phenolic spacers are included. All injectors must use 11mm diameter upper O-rings just like the OEM Subaru injectors. Reference instruction manual for more information.
The fuel rails are compatible with all fuel types including popular alcohol mixtures such as E85.
Included In the Fuel Rail Kit
- Black Anodized Laser Etched Aluminum Fuel Rails (x2)
- Phenolic Thermal Insulating Press-In Spacers, 20mm (x4)
- Stainless Steel M8x1.25 Mounting Bolts (x4)
Optional Plumbing Kit Part# 20-0478
This engine bay plumbing kit is designed to be used with all Radium EJ fuel rails and includes all the necessary fittings, hose and other components to complete the installation and have a complete operating system. This kit plumbs the fuel rails in series, beginning and ending at the factory hard lines near the LH strut tower. It is compatible with all factory hard lines, whether SAE quick connect or hose barb connections. An adjustable Radium Direct Mount Regulator (DMR) is included along with a Radium fuel pressure gauge to calibrate the DMR. The 6AN swivel adapter fittings for the fuel rail ports are low profile making them ideal for the tight spaces associated with the EJ motor. Pushlock hose-ends are easy to work with, making installation quick and painless. A variety of hose-ends are provided so the installer can custom tailor the fuel line routing for their specific vehicle. A parallel feed system is not possible with this kit.
The fuel hose included in this kit can be cut and installed with standard tools and without special skills. Unlike standard low-quality rubber fuel hose that degrades with alternate fuels, the provided Vapor Shield hose is resistant to all fuels including E85. Furthermore, the hose has a thermoplastic armor layer that guards against unwanted vapor permeation (gas smell). And unlike PTFE, this fuel hose helps absorb absorbs unwanted fuel injector pulses and has an easy to work with bend radius.
Included in Optional Plumbing Kit
- Direct Mount Regulator
- 6AN PushLok Hose Ends
- 6AN Adapter Fittings
- SAE Quick Connect Fittings
- 3/8" ID Vapor Shield EFI Hose
- Stainless EFI Hose Clamps
- 2007+ Subaru STI
- 2002 - 2014 Subaru WRX
- 2007 - 2012 Subaru Legacy GT
- 2007 - 2012 Subaru Outback XT
- 2006 - 2013 Subaru Forester XT