Agency Power Unequal Length Header w/Upipe WRX (2002-2014) STI (2004-2018) Hyundai The solenoid coil itself from

The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it

Having a light weight wheel like the Enkei Raijin helps break more efficiently

The PERRIN Engine Cover and Belt Cover are constructed from aluminum with precision drilled mounting holes and finished in red or black textured powdercoat

The 100% billet

Agency Power Unequal Length Header w/Upipe WRX (2002-2014) STI (2004-2018) Hyundai The solenoid coil itself fromThe all new Agency Power stainless steel unequal length header kit is now available for your Subaru WRX, STI & Legacy GT. A special designed collector enables perfect flow into the uppipe providing faster turbo spool and increased horsepower. The AP header features polished 321 stainless steel for a show quality finish. The header has CNC machined inch thick flanges and includes everything you need to bolt directly on to your turbo Subaru. Installing