Cobb Tuning BOV Adaptor for FMIC - Subaru WRX 01-07/STI 01-21This adapter can be used to mount a standard Subaru BPV to a 1" universal tube connection on the intercooler piping. The plate is threaded to accept included hardware. Why? Want to keep your bypass valve but have a new intercooler kit with a different connection? Use the COBB BPV Adapter to fit a standard Subaru flange BPV to a 1" universal tube connection. Features: CNC Machined Aluminum Black Anodized Finish Laser Etched COBB Logo Hardware Included