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The TiAL Sport QRJ BOV 1.5 psi spring is a replacement spring for the QRJ-series blow-off valve that changes the valve's release pressure to roughly 1.5 psi, helping tune recirculation or venting characteristics on forced-induction engines. This part ships in a blue finish and provides a specific spring rate for QRJ blow-off valves so tuners can achieve the desired valve response.
TiAL Sport QRJ BOV 1.5 PSI Spring - Blue
