Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
GSC Power Division manganese-bronze intake/exhaust valve guide for Porsche GT3 Cup 996/997 is a single STD-style replacement designed for race-spec head service. Offered individually, it positions valve stems to preserve correct clearance and sealing on GT3 Cup cylinder heads. This guide suits targeted repairs or rebuilds for 996/997 Cup applications where maintaining original valve geometry is critical.
GSC P-D Porsche GT3 CUP 996/997 Manganese Bronze STD Style Intake/Exhaust Valve Guide - Single
