GSC Super Alloy 33mm Oversize Exhaust Valve set - Subaru EJ20 / EJ25 Intake and vacuum line will be

and vacuum line will be included to make this adapter ready for the installation

designed to accept -8 O-ring boss fittings

Head Diameter: 32mm

TAME) or Nitro Methane

GSC Super Alloy 33mm Oversize Exhaust Valve set - Subaru EJ20 / EJ25 Intake and vacuum line will beRunning 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