Supertech 6.6mm valve stem seals fit 4G63 Evo, DSM, GVR4, 3000GT and Stealth. These are available with the standard OD for single valve springs or a reduced OD for use with Supertech's dual valve springs.
Reduced OD sizes also fit NON-VTEC B18/D16A1. Intake seals are brown, exhaust seals are blue.
