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GSC Power Division manganese bronze exhaust valve guide in a standard style for Porsche 996/997 Turbo models, offered individually with a +0.001" oversize outer diameter. This single replacement guide provides a durable bearing surface for exhaust valves in compatible Porsche heads and is intended for direct-fit cylinder head service when an oversize guide is specified.
GSC P-D Porsche 996/997 Turbo Exhaust Valve Guide Standard Style +.001in Oversize OD - Single
