Radium Engineering Top Feed Fuel Rail Upgrade Subaru WRX / STI (EJ20 / EJ25)

Radium Engineering Top Feed Fuel Rail Upgrade - Subaru WRX / STI (EJ20 / EJ25)

Radium Engineering's 20-0567-02 fuel rails are a direct bolt-on upgrade for Subaru EJ engines that are factory-fitted with top-feed injectors, keeping the OEM-style injectors while replacing the restrictive rails. Each rail has three 8AN ORB ports (six in total), including a centre port machined into the underside that suits a range of plumbing layouts.

The rails share the same mounting and injector spacing as Radium's 20-0577-02, are CNC machined and black anodised, and suit all fuel types including E85 and other ethanol blends.

Note: The centre underside port can interfere with the early AVCS solenoids found on the EJ207 and JDM EJ205 – use 20-0577-02 on those engines. Suits factory or OEM-equivalent injectors with 11mm upper O-rings; if upgrading injectors, confirm dimensions with the injector supplier. Installation by a professional is recommended.

Features

• Direct top-feed rail upgrade for EJ20/EJ25
• 3 x 8AN ORB ports per rail (6 total)
• Centre underside port for flexible plumbing
• CNC machined and black anodised
• Suits OEM-style injectors with 11mm upper O-rings
• Compatible with petrol, E85 and ethanol blends

Pairs Well With

• Radium Engineering Injector Seats (22mm) - Subaru WRX STI (EJ257)
• Radium Engineering Fuel Rail Plumbing Kit (Parallel) - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Fuel Rail Plumbing Kit (Series) - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Intake Manifold Gasket - Subaru WRX / STI (EJ20 / EJ25)
• Radium Engineering Fuel Pump Hanger - Subaru WRX / STI (GR / GV / VA)

Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.