Description

The IAG Performance V3 Top Feed Billet Aluminum Fuel Rails with phenolic spacers 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 and IAG's fuel rails were real-world tested to 1000hp. All IAG fuel rails are engineered and manufactured at the IAG facility in Westminster, Maryland. The rails are machined from a solid 6061 billet aluminum and feature an anodized black finish with the IAG logo engraved on the top.

Specifications

  • CNC machined from billet aluminum
  • 5/8” Bore I.D. designed to accept -8 O-ring boss fittings
  • 2 piece mounting design (Phenolic Thermo Spacers)
  • Recessed mounting hardware
  • Integrated port for fuel damper between injectors
  • Engraved with IAG Logo

What's Included

  • (x2) Billet Fuel Rail
  • (x4) Zinc coated M8x30mm socket head cap bolt
  • (x4) Short Phenolic Spacers
  • (x4) Long Phenolic Spacers
  • (x4) O-rings
  • (x2) Hex Head Threaded Plugs

Compatibility

  • 2008-2009 Subaru Forester XT
  • 2006-2013 Subaru Forester XT Limited
  • 2011 Subaru Forester XT Touring
  • 2002-2014 Subaru Impreza WRX
  • 2007-2014 Subaru Impreza WRX STI
  • 2008-2012 Subaru Legacy GT
  • 2009 Subaru Legacy GT spec.B
  • 2015-2021 Subaru WRX STI

The IAG Performance V3 Top Feed Billet Aluminum Fuel Rails with phenolic spacers 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 and IAG's fuel rails were real-world tested to 1000hp. All IAG fuel rails are engineered and manufactured at the IAG facility in Westminster, Maryland. The rails are machined from a solid 6061 billet aluminum and feature an anodized black finish with the IAG logo engraved on the top.

  • CNC machined from billet aluminum
  • 5/8” Bore I.D. designed to accept -8 O-ring boss fittings
  • 2 piece mounting design (Phenolic Thermo Spacers)
  • Recessed mounting hardware
  • Integrated port for fuel damper between injectors
  • Engraved with IAG Logo
  • (x2) Billet Fuel Rail
  • (x4) Zinc coated M8x30mm socket head cap bolt
  • (x4) Short Phenolic Spacers
  • (x4) Long Phenolic Spacers
  • (x4) O-rings
  • (x2) Hex Head Threaded Plugs
  • 2008-2009 Subaru Forester XT
  • 2006-2013 Subaru Forester XT Limited
  • 2011 Subaru Forester XT Touring
  • 2002-2014 Subaru Impreza WRX
  • 2007-2014 Subaru Impreza WRX STI
  • 2008-2012 Subaru Legacy GT
  • 2009 Subaru Legacy GT spec.B
  • 2015-2021 Subaru WRX STI

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