Turbo XS 2002-2007 Subaru WRX / 2004 STI Hybrid Blow Off Valve - WS02-XS-HYB

Not too loud and not too quiet, the WS02-XS-HYB is the valve for you if you want an upgraded Blow Off Valve that you can hear when you want to, but not when you don't. Built using the XS BOV platform, this valve vents partly to atmosphere and partly back to the intake for the best of both worlds. The modular design allows you to change both the inlet and outlet yourself, converting from 50/50 Hybrid to 100% Vent to Atmosphere with optional purchased parts. Fits 2002-2007 WRX and 2004-2021 STI.