Standard sized valve head diameter, factory triple groove keeper setup
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa
Stock sized valve head diameter, single groove keeper setup for high RPM use
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa
+1mm oversized valve head diameter, single groove keeper setup for high RPM use
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa