The TurboXS WRX Hybrid Blow Off Valve is a best Hybrid Valve on the market for the new WRX. Featuring Vent to atmosphere and Hybrid Recirculation to help with keeping your car running properly as well as giving you a loud Psssh between shifts. Easy Installation and a great sound. Made from 6061 Aluminum and Anodized Stealth black for a beautiful finish and great durability. Install it within 20 minutes with basic hand tools.