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The TiAL Sport QRJ blow-off valve is a compact, track-ready boost control valve fitted with a 1.5 psi spring and distinctive pink accent. It vents excess charge to stabilize turbo systems during throttle lift-off, helping reduce compressor surge and improve throttle response in forced-induction setups. Its straightforward styling and single-spring calibration make it a simple upgrade for turbocharged vehicles needing precise, audible boost relief.
TiAL Sport QRJ BOV 1.5 PSI Spring - Pink
