Radium Top Feed Upgrade Fuel Rails, Subaru EJ22 / EJ251

Radium Top Feed Upgrade Fuel Rails, Subaru EJ22 / EJ251

Application: Subaru EJ22 / EJ251
Part Type: Top feed upgrade fuel rails (pair)
Part Number: 20-0869-02

The Radium 20-0869-02 Top Feed Upgrade Fuel Rails suit Subaru EJ22 and EJ251 engines. Each rail has three 8AN ORB threaded ports (six in total), and thermal insulating press-in spacers are included to protect against heat transfer from the manifold.

The rails are compatible with the EJ251's OEM air-assist injectors, while the EJ22's OEM air-assist injectors are not compatible (they use 11mm upper O-rings and the rail ports are machined for 14mm). The OEM fuel pressure regulator can be reused with Radium 20-0303, and a Radium 20-0776 fuel pulse damper can be fitted in the centre port. Fuel injectors are not included.

Key Features

• 6 x 8AN ORB Ports: Three per rail for flexible plumbing
• Thermal Spacers: 15mm thermal insulating press-in spacers included
• OEM FPR Reusable: With the Radium 20-0303 adapter
• Pulse Damper Ready: Centre port accepts a Radium 20-0776 FPD
• Billet Construction: Black anodised, laser-etched aluminium rails

What's Included

• Black anodised, laser-etched aluminium fuel rails
• Green anodised fuel rail mount
• Black anodised, laser-etched 26mm injector seats
• Thermal insulating press-in spacers
• Rubber mounting spacer stays
• FKM O-rings for aftermarket injectors
• Stainless steel fuel rail hardware
• Stainless steel mount hardware

Optional Parts

• Radium FPR Adaptor 8AN ORB, 11mm Bore, 32mm Spacing, M5 - Subaru/Nissan/Mazda RX-7 (20-0303) – reuse the OEM fuel pressure regulator
• Radium V2 FPD-R Fuel Pulse Damper, 8AN ORB (20-0776) – direct-mount 8AN ORB fuel pulse damper for the rail ports
• Radium Insulating Spacers & Washers (Injectors) (14-0720) – EJ22 California (CARB) air-assist elimination – x4 required

Important Notes

• Fuel injectors are not included
• EJ251: compatible with the OEM air-assist injectors; to eliminate air assist with Bosch EV14 injectors, install the provided O-rings in the lower groove
• EJ22: the OEM air-assist injectors (11mm upper O-rings) are not compatible – aftermarket injectors need 14mm upper and lower O-rings (Radium lists Injector Dynamics ID1050, ID1300, ID1700 and ID2600-XDS)
• EJ22 California (CARB) spec only: air-assist elimination requires Radium 20-0816 injector seats (x4), 14-0720 spacers (x4) and flat head M8x1.25x60mm screws (x4)
• Leave enough space around the ports for accessories such as fuel pressure regulators, gauges and fuel pulse dampers – contact Coore for Radium's dimensional drawings to check clearance
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Subaru Impreza 2.2L 1999 (California/CARB spec – see notes)
• Subaru Impreza 2.2L 1999–2001 (federal spec)
• Subaru Impreza 2.5RS / 2.5TS / 2.5 OBS 1999–2004
• Subaru Forester 1999–2004
• Subaru Legacy 2.2L 1999 (California/CARB spec – see notes)
• Subaru Legacy 2.2L 1999 (federal spec)
• Subaru Legacy 2.5L 2000–2004
• Subaru Outback 2000–2004
• Subaru Baja 2003–2005

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.