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

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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-2101RD

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 red 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: 2 Write a review »

  0 of 0 people found the following review helpful:
Beautifully Machined December 11, 2017
Reviewer: Ben from Rochester Hills, MI United States  
Beautifully Machined

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  0 of 0 people found the following review helpful:
Awesome Product March 3, 2016
Reviewer: Gregory Derian from Paramus, NJ United States  
High quality product. It would be nice if you sold more accessories for installation.  Your fuel line kit is OK, but does not allow for alot of customization.  If you sold an assortment of fittings (ORB, AN, Barb for SAE30R9 and PTFE lines etc) to help with the installation.

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