08-14 Subaru STI IAG Performance PTFE Fuel Line Kit

IAG PTFE Flex Fuel Line Upgrade Kit — 2008-2014 Subaru STI

Flex Fuel Sensor Upgrade for IAG Fuel Line Kits
The IAG PTFE Flex Fuel Upgrade Kit is designed to add COBB Tuning Flex Fuel Sensor compatibility to an existing IAG fuel line kit installation. It replaces the 5.5″ hose connecting the fuel pressure regulator return to the factory hard line, adding the provisions needed to attach the COBB Flex Fuel Sensor to the return line. Requires the IAG-AFD-2210 or IAG-AFD-2211 base fuel line kit (sold separately).

DETAILS

• Upgrade kit for IAG fuel line kit installations
• Adds COBB Tuning Flex Fuel Sensor connection to the return line
• Replaces the 5.5″ hose between the FPR return and factory hard line
• Includes: (2) PTFE fuel lines, (1) flex fuel sensor relocation bracket, (1) SAE quick disconnect, (1) hardware pack
• Fragola 6000 series PTFE hose, stainless reinforced, black nylon cover
• 2000 psi working pressure / 8000 psi burst pressure
• Requires base IAG fuel line kit: IAG-AFD-2210 or IAG-AFD-2211
• COBB Tuning Flex Fuel Sensor NOT included — sold separately
• Fits: 2008-2014 Subaru STI

How This Upgrade Works
If you have an IAG fuel line kit installed and want to add flex fuel capability with the COBB Accessport system, this upgrade kit provides the modified return line and sensor bracket needed to incorporate the COBB Flex Fuel Sensor. It is a targeted upgrade to an existing installation rather than a full line replacement.

PTFE Hose Specification
The replacement lines use the same Fragola 6000 series PTFE hose specification as the base IAG line kits — stainless reinforced, black nylon cover, 2000/8000 psi working/burst pressure, E85 compatible.

What Is Required
Requires the base IAG fuel line kit (IAG-AFD-2210 or IAG-AFD-2211) already installed. The COBB Tuning Flex Fuel Sensor is required to complete the flex fuel setup and is sold separately.

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 Line Upgrade Kit is the clean, purpose-built solution for adding COBB flex fuel sensor capability to an existing IAG fuel line installation on an 08-14 STI. No fabrication, no adapters — the bracket and lines are application-specific for a direct installation.

Fitment