TiAL Sport replacement spring for the TLS QR blow-off valve calibrated to 8 psi, purple, 1.0 in. Use this spring to raise the QR valve actuation point to about 8 psi for higher-boost applications where a firmer hold is needed before venting. Supplied as a single spring for tuning or maintenance of TiAL QR blow-off valves.
TiAL Sport QR BOV 8 PSI Spring - Purple 1.0in