Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

Shop parts / Radium Engineering / New

Radium Engineering Subaru WRX/STI EJ-Series Engines Top Feed Fuel Rails (w/ Top Port)

Radium Engineering · New

Radium Engineering Subaru WRX/STI EJ-Series Engines Top Feed Fuel Rails (w/ Top Port)

MPN 20-0577-02 · Store SKU rad20-0577-02

$219.95
IN STOCK7 ready to ship

Supplier stock checked 11/7/2026, 7:24:37 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

The auxiliary port is located on the top surface of the fuel rails, making this setup ideal for applications that would experience clearance issues with AVCS components. For applications that were top-feed injectors from the factory. CNC machined, anodized and compatible with E85. FUEL RAILS, TOP FEED UPGRADE, SUBARU EJ, TOP PORT

Manufacturer fitment & guides

Check 20-0577-02 against the manufacturer’s application information below.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
  • Emissions acknowledgement required before purchase.
More from Radium Engineering ↗See the JuiceBuilt workshop ↗

YOUR NEXT MOVE

Your build.