This GSC Power Division manganese bronze stopper-style exhaust valve guide is for 2012+ Subaru BRZ FA20 applications and is supplied as a single unit with a +.003in oversize OD. It offers a measured oversize replacement for engines needing corrected guide fitment, allowing targeted service on the FA20 cylinder head without replacing every guide.
GSC P-D 2012+ Subaru BRZ FA20 Manganese Bronze Exhaust Valve Guide Stopper Style +.003in OD - Single