IAG PTFE Fuel Line Kit with COBB Flex Fuel Sensor Provisions — 2008-2014 WRX / 2008-2021 STI

PTFE Fuel Lines with Flex Fuel Sensor Integration
The IAG PTFE Fuel Line Kit with COBB Flex Fuel Sensor provisions is a complete fuel line kit for 2008-2014 WRX and 2008-2021 STI applications that includes built-in provisions for the COBB Tuning Flex Fuel Sensor. All lines are pre-assembled to application-specific lengths using Fragola 6000 series PTFE hose, stainless reinforced with a black nylon outer cover. The COBB Flex Fuel Sensor is sold separately.

DETAILS

• Fragola 6000 series PTFE hose with stainless reinforcement and black nylon cover
• 2000 psi working / 8000 psi burst pressure
• Built-in provisions for COBB Tuning Flex Fuel Sensor (sensor sold separately)
• Pre-assembled to application-specific lengths
• Compatible with E85 and all modern fuel types
• Designed for use with IAG Top Feed Fuel Rails
• Fits: 2008-2014 WRX / 2008-2021 STI

PTFE Hose 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.

Built-In Flex Fuel Sensor Provisions
Unlike the standard IAG-AFD-2210 line kit which requires the separate flex fuel upgrade, this kit includes the flex fuel sensor provisions from the start. If you are building a flex fuel system from scratch, this kit saves the step of purchasing the upgrade kit separately.

Sensor Not Included
The COBB Tuning Flex Fuel Sensor is not included and must be purchased separately. The kit provides the sensor mounting bracket and the modified return line with sensor connection — the sensor itself plugs in after installation.

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

If you are building a flex fuel system on an 08-14 WRX or 08-21 STI from the ground up, this kit is more efficient than buying the base line kit plus the upgrade kit. The flex fuel provisions are built in from the start.

Fitment