Turbosmart Supersonic Blow Off Valve Black Subaru WRX 2008-2014 / Legacy GT 2005-2009
Turbosmarts loudest blow off valve, the Supersonic is sure to turn heads wherever you are. This valve is ideal for both street and race cars and produces the signature Supersonic sound. It is fully atmospheric and features a "tool free" adjustment setup by turning the cap of the valve. Included is an aluminum weld on flange and quick release v-band clamp.