Cosworth Top Feed Fuel Rail Kit ( Part Number:COS1 20026741)

Cosworth Top Feed Fuel Rail Kit

MODEL # COS1 20026741
Manufacturer Part # 20026741


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The Cosworth High Flow Subaru Fuel Rail Kit is specifically designed for "top feed" style fuel injectors and is configurable for various fuel line installation scenarios. Each fuel rail is machined from solid aluminum and features a natural hard anodized finish for lasting durability. Each kit includes dash 6 AN fittings that will allow you to install fuel lines of your choice. This kit is intended for race and high performance applications and is not intended as a direct replacement for the factory fuel lines and fuel rails. Can be used with the Cosworth TGV Delete Kit (PN 20015678).
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Brand: Cosworth
Fuel Lines Included: No
Injector Type: Top Feed
Rail QTY: 2

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.


This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:

andrew_browning6953470 3 years ago
these are great have 2011 sti runnin 1300cc injectors custom fuel lines fits great went together great
Verified Purchase

Excellent Rails
stellarzeller 4 years ago
Before I installed these rails on my 2011 GRB, I had perrin rails. I used these rails to sufficiently push 480awp on pump gas. They offer a wide array of options for tuning and customization of your fuel lines. If you are running a Huge Borgwarner Twin Scroll and need the option of running high volume rails in a pass through dual feed setup, then these are a great option to add along with the cosworth composite deletes and intake manifold. I've been using these on my daily driven beast for over a year, I've deleted both dampers with russell 5/16 adapter clips to -6 to -8 feed and return lines, with a Russell Y block right above my starter that splits into -6 lines at cylinders 1 and 2 with the return going parallel to a turbosmart adjustable FPR attached with a bracket on the driver side TGV delete, Air pumps were deleted as well allowing space for this. All in all these rails are great if you want a clean setup and plenty of fuel.

  • Q: 2016 sti  Dil 11 days ago


    Do i have to run the fuel rail kit in stage three setup or can I just run inj and pump.

    • A: The Stage 3 Cobb setup will not require the fuel rails to be changed.

      Evan M. 10 days ago
  • Q: Will these fit JDM EJ207 Version 8 Motors with AVCS?  akcel 1 year ago


    Will these fit JDM EJ207 Version 8 Motors with AVCS?

    • A: Sorry but I am not able to confirm fitment on that vehicle. These have only been confirmed for USDM applications.

      Chris W. 1 year ago
  • Q: Fitment  Incredible Black GD7 2 years ago


    What tgv's will this fit on? Because they don't seem to fit properly on my 06 tgv's

    • A: These are only confirmed to fit with the Cosworth TGV Delete Kit (PN 20015678)

      Tyler G. 2 years ago
  • Q: 2013 STI  My2013STI 3 years ago


    do i need to change my fuel lines for these rails to work on my 2013 sti sedan, or will they just be a direct replacement?

    • A: The Cosworth fuel rails will require aftermarket fuel lines and unfortunately we don't offer any fuel lines at this time.

      Kyle A. 3 years ago
  • Q: EJ205 JDM wrx engine  combibug 5 years ago


    Hi guys, just wondering if this will fit a JDM EJ205 wrx engine application? Tq

    • A: These fuel rails should fit the JDM EJ205 engine, but unfortunately we cannot guarantee fitment on vehicles from outside the USA.

      Zach G. 5 years ago
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