Turbosmart Supersonic Atmospheric Blow Off Valve Blue Subaru 2008-2014 WRX
Turbosmart Subaru Supersonic BOV - 38mm - Blue WRX
Preferred venting solution for serious street tuners and racers. Big flow and even bigger sound. Easy to install and set up.
Gasket, Yellow Spring (rated -22 to -20 InHg) installed, and hose blanking plug.