GSC Power Division 33mm (+1mm) Super Alloy Oversize Exhaust Valve (Set of 8) Subaru 2002-2014 WRX / 2004-2020 STI

Running high horsepower with high EGT's requires a valve that will last in 2000F conditions. GSC 33mm +1 Oversize Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.

Sold in a set of 8.

Machining Required