Radium Engineering Fuel Plumbing Kit – Subaru WRX 08–21 / STI 08–21

These Radium Engineering fuel hanger plumbing kits are designed to integrate with the Radium in-tank fuel pump hanger and convert the returnless OEM system into a full return-style setup with post-pump filtration. Ideal for high-performance Subaru builds running aftermarket fuel rails and a fuel pressure regulator.

Overview
Each plumbing kit includes an 8AN PTFE feed hose from the fuel pump hanger to a Radium fuel filter, which mounts cleanly beneath the chassis using supplied brackets. An 8AN rubber hose carries fuel from the filter to the engine, and a 6AN rubber return hose routes fuel back to the tank from the regulator. Billet aluminium retainers and stainless hardware ensure a secure, professional installation.

Choose between two filter element types:

• 20-0629-03 – Stainless Steel (cleanable, reusable)

• 20-0629-05 – Microglass (high-efficiency, disposable)

Key Features

• Converts to return-style system

• Includes Radium fuel filter (element depends on kit selected)

• 8AN PTFE feed and 6AN return hoses

• Bolt-on filter bracket – no drilling required

• Billet aluminium fuel line retainers

• Compatible with E85 and all popular fuel types

Vehicle Compatibility
08–14 Subaru Impreza (All)
08–14 Subaru Forester (All)
14–18 Subaru Forester XT
15–21 Subaru WRX
15–21 Subaru STi