GSC Power Division valve spring seat, sold as a single piece for BRZ/FRS/86 FA20 engines, specified for use with the TVS1850 spring and included in the GSC P‑D5756 kit. This seat is the replacement accessory intended for service or rebuilds of the P‑D5756 valve train kit, providing the mating surface required beneath the spring when reinstalling or upgrading the assembly.
GSC P-D BRZ/FRS FA20 Valve Spring Seat (For TVS1850 - Part of Kit GSC P-D5756) - SINGLE