TiAL QR blow-off valve fitted with a 12 PSI spring, a 1.5in inlet and a silver finish. It vents excess boost pressure for forced-induction engines while sealing under normal boost, helping preserve compressor stability and throttle response. The larger 1.5in port suits applications with larger piping and the 12 PSI spring determines the valve’s release pressure for consistent operation across conditions.
TiAL Sport QR BOV 12 PSI Spring - Silver (1.5in)