IAG V2 Top Feed Fuel Rails For 2002-14 Subaru WRX, 07-17 STI, 08-12 LGT, 06-13 FXT (Black Finish)

IAG V2 Fuel Rails in Black for Top Feed Subaru WRX, STI, Legacy GT, Forester XT

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MSRP: $178.49
Our Price: $169.99
Savings: $8.50

Availability: Usually Ships in 24 to 72 Hours
Part#: IAG-AFD-2101BK

Fuel Dampers*:
Include (x2) Fuel Dampers Part#401-0012 [Add $70.00]
Not Required

Description Applications
The IAG Performance V2 Top Feed Billet Aluminum Fuel Rails are designed to increase the power ceiling on your Subaru's fuel system. The factory fuel rails function in a series, which means that each cylinder's fuel is delivered after the other. As horsepower rises past the 350whp mark, the stock rail often does not have the capacity to deliver fuel to the last cylinder effectively*. As a result, that last cylinder can run lean, which can result in catastrophic failure. The IAG billet fuel rails are designed to eliminate this problem. First, our fuel rails operate in parallel format, each cylinder bank receives equal fuel, matching the flow between the rails ensures that each injector sees the same fuel pressure. Second, the bore of our rail is machined to 5/8" ID and is designed to accept -8 o-ring boss fittings. This configuration greatly increases the volume of the rail which means that more fuel is available at higher power levels. These fuel rails were real world tested to 850hp. The V2 fuel rails also feature a port to add an optional fuel damper between each pair of injectors. Fuel dampers absorb fuel oscillations caused by injectors opening and closing. All Subaru’s are equipped with a fuel damper however its location is some distance from the injectors. The IAG V2 rails locate the damper between the injectors to smooth out the fuel flow.

The fuel rails are engineered and manufactured at the IAG facility in Westminster, Maryland. The rails are machined from a solid block of 6061 billet aluminum and feature an anodized black finish with the IAG engraved logo on the top.

  • (x2) Billet Fuel Rail
  • (x4) Zinc coated M8x20mm socket head cap bolt
  • (x2) Hex Head Threaded Plugs
  • (x8) 8mm Flat Washers

  • (x2) Fuel Dampers - $70.00

*Install note: the (x2) hex head threaded plugs should be torqued to 55 ft/lbs.

Confirmed To Fit:
Injector Dynamics

*Please note aftermarket lines & fittings, which can be purchased separately is required to fit the IAG Fuel Rails.
  • CNC machined from billet aluminum
  • 5/8” Bore I.D. designed to accept -8 o-ring boss fittings
  • 1 piece mounting design (No spacers or washer stacking required)
  • Recessed mounting hardware
  • Integrated port for fuel damper between injectors
  • Reduced weight over previous models
  • Engraved with IAG Logo

Average Rating: 5 of 5 Total Reviews: 5 Write a review »

  0 of 0 people found the following review helpful:
Fuel rails January 18, 2018
Reviewer: Ricky Thompson from Randallstown, MD United States  
Fast shipping exactly as described

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  0 of 0 people found the following review helpful:
Happy November 28, 2017
Reviewer: Erik Alander from Rohnert Park, CA United States  
They are as described, there machine correctly and work great

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  0 of 0 people found the following review helpful:
Fuel rails instructions June 22, 2016
Reviewer: Luis Vargas from San Jose, CA United States  
Would've been nice if it came with instructions.


Thanks so much for the helpful suggestion sir.  We are working on some installation guides for future clients.  We appreciate your feedback.  Have a great day.

-Sales Team

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  0 of 0 people found the following review helpful:
awesome fuel system May 2, 2016
Reviewer: Antonio Everett from Baltimore, MD United States  
Just installed yesterday. car runs much smoother now with no leaks great product.

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  0 of 0 people found the following review helpful:
Excellent December 22, 2015
Reviewer: Dave Rettberg from eldersburg, MD United States  
Top notch quality and excellent customer service.

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