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By Radium Engineering

Radium Dual Port Injection (DPI) Fuel Rails - Subaru WRX/STI/FXT/LGT

$494.00
$494.00
Shipping calculated at checkout.
Brand: Radium Engineering
Availability: In stock
SKU: 20-0499
Collections:
$494.00
$494.00

These Radium dual port injection (DPI) fuel rails were designed specifically for the Radium 20-0489 TGV Housing Kit and are NOT compatible with any other TGV housing on the market. Manufactured with large 10AN ORB end ports, the fuel rails can support all necessary engine power requirements. The top auxiliary ports are threaded with 8AN ORB for ancillary accessories. The rails are CNC machined from solid 6061 aluminum, black anodized, and laser engraved for a high quality surface finish. They are compatible with all fuel types including alcohol mixtures such as E85 and is a necessary modification for those using methanol on high powered engines.

Machined press-fit phenolic spacers are included to insulate TGV housing heat transfer.

FUEL INJECTOR FITMENT

Each fuel rail has 4 injector ports that are machined to permit injectors with 14mm O-rings.

Primary Lower Fuel Injectors

Using the provided adapters, both OEM Subaru or 60mm Bosch EV14 style fuel injectors can be used. To reuse the OEM Subaru injectors, the provided top hat must be installed over the upper OEM injector O-ring as shown. To use aftermarket 60mm Bosch EV14 injectors, the provided injector seat must be installed over the lower injector O-ring.

Below are compatible aftermarket injectors for the lower primary ports.

  • Injector Dynamics ID1050x-60-14-14
  • Injector Dynamics ID1300x-60-14-14
  • Injector Dynamics ID1700x-60-14-14
  • Injector Dynamics ID2000-60-14-14

Secondary Upper Fuel Injectors

Only 34mm Bosch EV14 style fuel injectors can be used. Fortunately, many Subaru owners are currently already using Injector Dynamics XXXX.48.11.WRX fuel injectors. If the upper and lower billet caps are pulled off, the base injector is a 34mm Bosch EV14 which can be used. Below are the compatible secondary upper injectors.

  • Injector Dynamics ID850-34-14-14
  • Injector Dynamics ID1050x-34-14-14
  • Injector Dynamics ID1300-34-14-14
  • Injector Dynamics ID1700-34-14-14
  • Injector Dynamics ID2000-34-14-14

Kit Includes:

  • Black Laser Etched Aluminum Fuel Rails (x2)
  • Injector Seats for Aftermarket Injectors (x4)
  • Injector Hats with Filter Screens for OEM Injectors (x4)
  • Phenolic Insulating Press-In Spacers (x4)
  • Stainless Steel Hardware
  • FKM Viton O-ring Seals

What clients say

  • Really fast and high quality customer support, my order got to me faster than the quoted time too. No complaints

  • The team took a mostly broken car after some work done elsewhere, and have systematically made it reliable and fast for a fair price. The staff are invested in the work they do which also makes a big difference.

  • Jeff was extremely helpful in assisting me with my exhaust. Always kept me updated and answered any queries in a timely manner. Will definitely be coming back for my future mods

  • Justin and his crew is amazing! Always ready to help and service with a smile. Trusty, friendly and reliable! Had my car sent in for repair twice and it’s fixed on time, at a reasonable price and with no issues. Highly recommended!

  • Easy to deal with and part was ordered quickly

Fitment & Compatibility

How do I know if this part fits my car?

We recommend checking your vehicle's make, model, year, and variant carefully. Most product listings include compatibility notes, but if you're unsure, contact us before purchasing.

Can you confirm fitment before I place my order?

Absolutely. Send us your VIN or Rego and we’ll confirm fitment for you.

Do you offer installation at your workshop?

Yes, we offer installations for most parts at our Ringwood workshop. Contact us to book or get a fitting quote.

Shipping & Handling

How long will it take for my order to arrive?

Most in-stock items ship within 1-2 business days. Delivery time depends on your location and shipping option chosen at checkout.

Do you ship internationally?

Currently, we only ship within Australia. For international enquiries, please contact us directly.

Can I pick up my order in person?

Yes, local pickup is available from our Ringwood workshop. Simply select ‘Local Pickup’ at checkout and we’ll notify you when your order is ready.

Please note: Some items are stored offsite and may need to be transferred from our warehouse, which can add a few business days before pickup is available.

Returns & Warranty

Can I return a product if it doesn’t fit?

Returns are accepted within 14 days if the item is unused and in original packaging. Please see our full Returns Policy for details.

What warranty comes with your products?

All products come with the manufacturer’s warranty. If you experience any issues, contact us and we’ll assist with the claim process.