The TurboXS RBV Recirculating BOV is a simple bolt on upgrade that will prolong the life of your turbo charger.
The STI specific kit is designed very similar to your stock blow off valve by hooking up to the recirculation fitting, and allowing you to running high boost levels without leaks. Included with the kit are a gasket, washers to increase spring tension, and necessary hoses.
Notes: This valve is for recirculation only and can not vent to atmosphere.