GSC Power Division manganese bronze exhaust valve guide for Audi R8 V10 engines, supplied as a single unit with +.003in oversize OD. The larger diameter option addresses valve-to-guide clearance when reconditioning or replacing worn guides. Use this guide to re-establish correct exhaust valve alignment and consistent movement in V10 cylinder heads that require an oversize fit.
GSC P-D Audi R8 V10 Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single