The TiALSport Q blow-off valve with an 11 psi spring in silver is a BOV for forced-induction engines that provides controlled boost relief using a slightly stiffer spring preload. The Q-style assembly yields a consistent valve response under that setting. The silver finish keeps a subdued, factory-friendly look while offering a different calibration option for tuning.
TiAL Sport Q BOV 11 PSI Spring - Silver