Radium Engineering Top Feed Conversion Fuel Rails – Subaru EJ20 V1–V2

A direct bolt-on solution for early EJ engines, this Radium Engineering fuel rail kit converts the OEM side feed injector setup to a modern top feed configuration. Ideal for performance upgrades, these rails offer flexible plumbing options with triple 8AN ORB ports per rail and thermal isolation for consistent fuel delivery.

Vehicle Compatibility:

• 92–96 Subaru Impreza WRX (EJ20G)

• 1998 Subaru Impreza 2.5RS (EJ25D)

• 1998 Subaru Forester (EJ25D)

• 96–99 Subaru Legacy LSi / GT / SUS (EJ25D)

• 94–98 Subaru Legacy (JDM, EJ25D)

• 94–98 Subaru Grand Wagon (JDM, EJ25D)

• 94–98 Subaru Lancaster (JDM, EJ25D)

• 96–99 Subaru Outback (EJ25D)

Fuel Injector Compatibility: This fuel rail is designed for top feed injectors with 14mm upper and lower O-rings, 34mm height.
Do not use “WRX fitment” injectors.
Compatible injector examples:

• ID1050-XDS-34-14-14

• ID1300-XDS-34-14-14

• ID1700-XDS-34-14-14

• ID2600-XDS-34-14-14

Overview:

• Converts early EJ engines to top feed fuel injectors

• Ideal for performance builds and fuel system upgrades

• 3x 8AN ORB ports per rail support versatile plumbing

• Thermal spacers included for heat insulation

• Direct fit with no permanent modifications