GSC Power-Division Super Alloy Exhaust Valve 2013 Subaru-Scion BRZ-FRS FA20 STD Oiling This is the thicker clutch

This is the thicker clutch disc version

They come black anodized with stainless hardware

Includes a full replacement set of 11mm bolts washers and nuts with assembly lube

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GSC Power-Division Super Alloy Exhaust Valve 2013 Subaru-Scion BRZ-FRS FA20 STD Oiling This is the thicker clutchStem Diameter (mm) 5. 5mm Overall Length (mm) 95. 15mm Head Diameter (mm) 29. 00mm GSC Power Division Super Alloy Exhaust Valves for FA20 FRS BRZ are for those running high horsepower, high EGT set ups that need a valve that will last in 2000F conditions. The 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.