Description
Radium Engineering to offer an exciting new fuel plumbing option for Subaru owners upgrading to aftermarket fuel rails. These kits offer quality nylon-braided PTFE fuel hose with a range of Billet fittings to plumb your new parallel fuel rail kit.

PTFE Hose

PTFE is the ultimate hose material. It has outstanding resistance to chemicals including alcohol fuels such as methanol, ethanol, E85 and leaded fuels such as race gas. It is also suitable for brake, transmission, clutch, power steering, and coolant. PTFE hose has ~zero~ permeation and will not emit vapors like rubber fuel hose, so it is safe to use in confined spaces such as a vehicle’s trunk or small garage.

All Radium Engineering PTFE hoses have been successfully tested in-house to 1200psi although PTFE can typically withstand 2500psi+. They are also for extreme temperatures (-94F to +480F). They feature an extruded PTFE (fluoropolymer) core wrapped in a stainless steel wire braided sleeve. The outer coating is determined by the assembly process: Universal DIY ends (braided PET) or preassembled crimped ends (smooth PVC). All hose ends are type-II black anodized aluminum. 

PTFE Hose Ends

These hose ends are specific to PTFE hose and cannot be used with rubber hose. Each fitting is machined from aluminum and anodized black. Internal O-rings permit swivelling.

Kit Options:

These kits are available in 4 options:

V1 
Does not include a Fuel Pressure Regulator but includes fittings to suit aftermarket twin-inlet AN-6 regulators
Includes straight male fittings for the fuel rails with a 90-degree hose ends
V2 
Does not include a Fuel Pressure Regulator but includes fittings to suit aftermarket twin-inlet AN-6 regulators
Includes low-profile swivel banjo fittings for the fuel rails with a 45-degree hose ends
V3 
Radium Engineering Multi-Port Fuel Pressure Regulator with mounting bracket
Includes straight male fittings for the fuel rails with a 90-degree hose ends
V4 
Radium Engineering Multi-Port Fuel Pressure Regulator with mounting bracket
Includes low-profile swivel banjo fittings for the fuel rails with a 45-degree hose ends
 

Fitment Notes:

Hose and Fittings are not assembled. Fuel hose will need to be cut to appropriate lengths and have the hose ends fitted professionally. 
Excess hose is supplied to allow for multiple plumbing routes.
Fuel Rails are not included, however this kit is compatible with any aftermarket fuel rail with AN-8 ORB ports.
Additonal hose ends are included to allow for different fitment options.
 

Vehicle Fitment:

These kits will suit the following vehicles easily:

2008-2014 Subaru WRX
2008-2014 Subaru STI
2015-2021 Subaru STI
The following vehicles can use the plumbing kit but the Radium FPR bracket for the V2 and V4 kits will not be suitable

2004-2009 Subaru Liberty GT
2004-2009 Subaru Outback XT
2008-2013 Subaru Forester XT
The following vehicles can use the plumbing kit, however the fuel feed and fuel return lines do not utilise the SAE EFI Quick Connect style fittings. For vehicles without this SAE fitting additional parts will be required to convert the OEM hard fuel lines to AN-6 male flares. In addition, these vehicles utilise a fuel filter located in the engine bay which will not be suitable with this plumbing kit and an aftermarket filter will need to be purchased separately. The Radium FPR bracket for the V2 and V4 kits will not be suitable for these vehicles.

1994-2000 Subaru WRX
2001-2007 Subaru WRX
1994-2000 Subaru STI
2001-2007 Subaru STI
1997-2002 Subaru Forester GT
2003-2008 Subaru Forester XT