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This GSC oversized exhaust valve guide for Subaru FA20/BRZ applications provides a +0.001in oversize stopper option sold individually. Intended for engine builders and valve job work on FA20 platforms, the guide supports precise valve seating and alignment during reassembly. The listing presents a single guide component sized for the specified engine family rather than a full kit.
GSC Subaru FA20/BRZ +.001in Oversize Stopper Exhaust Valve Guide - Single
