Flex Fuel Line Upgrade Kit 08-14 WRX/ 08-21 STI IAG Performance PTFE

IAG PTFE Flex Fuel Line Upgrade Kit — 2008-2014 WRX / 2008-2021 STI

Flex Fuel Line Upgrade for Existing IAG Fuel Line Installations
The IAG PTFE Flex Fuel Line Upgrade Kit adds COBB Tuning Flex Fuel Sensor compatibility to existing IAG fuel line kit installations on 2008-2014 WRX and 2008-2021 STI applications. Compatible with base IAG fuel line kits for this platform.

DETAILS

• Upgrade kit — adds COBB Flex Fuel Sensor provisions to existing IAG fuel line kit
• Fragola 6000 series PTFE hose with stainless reinforcement
• E85 compatible
• COBB Tuning Flex Fuel Sensor NOT included
• Fits: 2008-2014 WRX / 2008-2021 STI

Purpose of This Kit
This kit upgrades an existing IAG base fuel line installation on the 08-14 WRX or 08-21 STI to include COBB Flex Fuel Sensor compatibility. It modifies the return line routing to add the sensor connection.

PTFE Construction
IAG’s PTFE fuel lines use Fragola 6000 series PTFE hose with stainless steel reinforcement and a black nylon outer covering to prevent scratching. The lines are pre-assembled to application-specific lengths for a direct installation — no cutting or fitting assembly required. Working pressure is 2000 psi (burst 8000 psi). PTFE does not allow permeation of fuel vapors, which eliminates the fuel smell that other hose types can exhibit. The hose is compatible with all automotive fuel types including E85.

Sensor Not Included
The COBB Tuning Flex Fuel Sensor must be purchased separately. This kit provides the hardware to connect and mount it.

Why Choose IAG Performance

IAG Performance has been building Subaru-specific engine and drivetrain components since 2001, and in that time they have become the standard by which serious Subaru builds are measured. Based in Westminster, Maryland, IAG designs, machines, and assembles their products in-house using Haas CNC equipment and their own engineering team. Their catalog spans everything from short blocks and long blocks rated to 1150 BHP all the way down to the fuel system, oiling, and drivetrain hardware that keeps modified Subarus running reliably for years. Every IAG product exists because a problem needed a better solution than what was available — and the engineering shows.

The RallySport Take

The IAG flex fuel upgrade kit is the targeted solution for adding E85 sensor capability to an existing IAG fuel line installation on the 08-21 WRX/STI platform.

Fitment