Radium Top Feed Upgrade Fuel Rails w/Top FPD Port - Subaru WRX/STI/Forester
Application: Subaru EJ with OEM top feed injectors where early AVCS solenoid clearance is required (EJ207, JDM EJ205) and EJ253 models (see Vehicle Fitment)
Part Type: Top feed upgrade fuel rails (top port)
Part Number: 20-0577-02
Radium Engineering top feed upgrade rails fit Subaru EJ intake manifolds that already use top feed injectors, and retain the OEM or OEM-equivalent injectors. This version features a top port design that provides clearance for the early AVCS solenoid used on the EJ207 and JDM EJ205.
Each rail is machined from 6061 aluminium, black anodised and laser etched, and uses thermal insulating press-in spacers to help insulate the rails from intake manifold heat. The ports are tapped for 8AN ORB fittings, giving flexibility to plumb the regulator, pulse damper and gauge to suit your fuel system.
Key Features
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Top Feed Upgrade: Retains OEM or OEM-equivalent top feed injectors
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Top Port Design: Clears the early AVCS solenoid on EJ207 and JDM EJ205
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Billet Construction: 6061 aluminium, black anodised and laser etched
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8AN ORB Ports: Flexible fuel system plumbing
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Thermal Spacers: 20mm insulating press-in spacers
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Stainless Hardware: Stainless steel mounting hardware
What's Included
- Aluminium fuel rails
- 20mm thermal insulating press-in spacers
- Stainless steel hardware
Optional Parts
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Radium Fuel Rail Adapter - Subaru Ver8/9 EJ207, 2.5i EJ253 (20-0372) - adapter brackets required for 2003-2006 WRX STI (JDM) and EJ253 applications
Important Notes
- This is an upgrade rail - OEM or OEM-equivalent injectors must be used (same height and matching upper and lower O-ring diameters and styles)
- Fuel injectors are not included
- Radium does not make injector recommendations - consult your tuner for brand and flow rate
- 8AN ORB fittings are sold separately and must be selected to suit your application
- Allow ample space around the ports for regulators, gauges and pulse dampers - check clearance using Radium's dimensional drawings
- 2003-2006 WRX STI (JDM) and EJ253 Impreza, Forester, Legacy and Outback applications require the Radium 20-0372 adapter brackets
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Subaru Impreza WRX (JDM/EDM) 2001-2006
- Subaru Impreza WRX STI (EDM) 2001-2006
- Subaru Impreza WRX STI (JDM) 2001-2002
- Subaru Impreza WRX STI (JDM) 2003-2006 - requires 20-0372
- Subaru Impreza (EJ253) 2004-2011 - requires 20-0372
- Subaru Forester (EJ253) 2005-2010 - requires 20-0372
- Subaru Legacy (EJ253) 2005-2012 - requires 20-0372
- Subaru Outback (EJ253) 2006-2009 - requires 20-0372
For application support, send your vehicle details to TJ Auto Parts through the Parts Finder.
Supplier-listed applications:
- Subaru Impreza WRX (JDM/EDM) 2001-2006
- Subaru Impreza WRX STI (EDM) 2001-2006
- Subaru Impreza WRX STI (JDM) 2001-2002
- Subaru Impreza WRX STI (JDM) 2003-2006 - requires 20-0372
- Subaru Impreza (EJ253) 2004-2011 - requires 20-0372
- Subaru Forester (EJ253) 2005-2010 - requires 20-0372
- Subaru Legacy (EJ253) 2005-2012 - requires 20-0372
- Subaru Outback (EJ253) 2006-2009 - requires 20-0372
Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.
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If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.
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We’re here to help make returns easy and hassle free! Contact us with any questions.
Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.
