This GSC Power Division exhaust valve guide is specified for the Porsche 944 Turbo as a standard-style replacement with a +0.001 inch oversize outer diameter. Supplied individually, the listing identifies the exact model application and oversize sizing for direct service in the named Porsche engine.
GSC P-D Porsche 944 Turbo Exhaust Valve Guide Standard Style +.001in Oversize OD - Single