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IAG PTFE Flex Fuel System Kit w/ Lines, FRP, Fuel Rails 2008-2021 STI

Original price $999.99 - Original price $999.99
Original price
$999.99 - $999.99
Current price $999.99
Select Fuel Rail Color: Black

The IAG Performance PTFE Engine Bay Flex Fuel Kit for the 2008-21 Subaru STI combines our popular PTFE Flex Fuel Line kit with IAG Top Feed Fuel Rails, Aeromotive Fuel Pressure Regulator and your choice of Injector Dynamics fuel injectors. Just add a Cobb Flex Fuel Sensor and a pair of IAG TGV housings to round out this kit and complete your installation.

All lines feature Fragola 6000 series PTFE hose and are pre-assembled and ready for installation. The lines are stainless reinforced and feature black nylon covering to prevent scratching. With a 2000 psi working pressure and 8000 psi burst pressure, these lines will easily handle the demands of your fuel system.


  • PTFE is a coating that resists heat and corrosion, making it ideal for all automotive fluid types.
  • PTFE hoses will not allow the permeation of fuel vapors and will eliminate the chances of fuel smell that other lines can exhibit.
  • Custom fittings specifically designed to work with the COBB Flex Fuel Sensor
  • Pre-assembled to application-specific lengths - for easy installation.


  • IAG Flex Fuel PTFE Line Kit (PN# IAG-AFD-2220)
  • Aeromotive FPR
  • IAG Fuel Pressure Gauge
  • 90-degree Gauge Adapter
  • IAG Top Feed Fuel Rails (Choose from Black, Red or Gold Finish)
  • Injector Dynamics (1050cc, 1300cc, 1700cc or 2600cc) Fuel Injectors.

Installation Notes:

  • Aftermarket TGV Housings are required for installation.
  • The included bracket is designed to safely mount an Aeromotive Fuel Pressure Regulator (PN# 13138) on the driver side strut tower, replacing the factory regulator.
  • COBB Flex Fuel Sensor (Sold Separately)