Fitment Information: This kit is a perfect fit for 2008 - 2021 Subaru STI and 2008 - 2014 Subaru WRX models. Features: The IAG PTFE Engine Bay Fuel System Kit combines the well - loved IAG PTFE Fuel Line kit, IAG Top Feed Fuel Rails, and an Aeromotive Regulator for a complete installation. It provides all you need to supply your engine with sufficient fuel to meet your horsepower needs. Aeromotive regulators ensure consistent and reliable fuel pressure and delivery. The line kits are compatible with modern ethanol fuels like E85. The PTFE coating resists heat and corrosion, suitable for all automotive fluid types. PTFE hoses prevent fuel vapor permeation, eliminating the fuel smell issue of other lines. They are pre - assembled to the right lengths for easy installation. What's in the Box: You'll get one Fuel Line Kit, one set of IAG Golden Fuel Rails, and one Aeromotive Adjustable Fuel Pressure Regulator. Installation Notes: You need OEM or IAG TGV Housings and injectors for installation.
Using this fuel system kit is quite straightforward. First, make sure you have the necessary OEM or IAG TGV Housings and injectors as mentioned in the installation notes. Then, take out the pre - assembled fuel line kit, IAG golden fuel rails, and the Aeromotive adjustable fuel pressure regulator from the box. Install them following the standard automotive installation procedures for fuel systems. As for maintenance, since the PTFE coating resists heat and corrosion, it's quite durable. But it's still a good idea to check the hoses regularly for any signs of wear or damage. If you're using ethanol - based fuels like E85, keep an eye on the fuel pressure as well, as the Aeromotive regulator helps maintain a consistent pressure. When you notice any changes in engine performance or fuel delivery, it might be time to give the whole system a thorough inspection.
