Agency Power Adj. Blow Off Valve Subaru WRX 02-07 STI 04-08
The Agency Power BOV is a fully adjustable, fully rebuild able, and a completely useful device. The BOV is designed to be used with several different setups. The valve can be set up to vent 100% to the atmosphere or 50/50. This is where 50% of the air is returned to the intake pipe and 50% is vented out. The valve includes the return line plug as well. We recommend this valve for daily drivers to high boost race cars.

Available in Red, Silver, Blue, and Black