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IAG Performance

IAG - Subaru 08-21 STI - PTFE Flex Fuel System Kit w/ 2600cc Fuel Injectors (Red)

IAG - Subaru 08-21 STI - PTFE Flex Fuel System Kit w/ 2600cc Fuel Injectors (Red)


Regular price $2,551.99 USD
Regular price Sale price $2,551.99 USD
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The IAG Performance PTFE Engine Bay Flex Fuel Kit for the 08-21+ 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 (Red Finish)
  • Injector Dynamics (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)


  • Subaru 08-21 STI
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