Supertech Subaru BRZ/FRS Exhaust valve 30 (+1) x 5.45 x 97.7mm INCONEL- Set of 8

This set includes eight Supertech exhaust valves, specifically sized at 30mm (+1mm oversize) with a 5.45mm stem and a 97.7mm overall length. These valves are crafted from INCONEL, a high-nickel alloy known for its exceptional strength and resistance to extreme heat and corrosion. This makes them a solid choice for Subaru BRZ and Scion FRS owners looking to rebuild or upgrade their engine's top end.

The use of INCONEL is notable because it can withstand the high temperatures and pressures found in the exhaust port, helping to prevent valve seat recession and maintain sealing integrity over time. This material is often chosen for performance applications where stock valves might struggle under demanding conditions. The +1mm oversize dimension means these valves are slightly larger than stock, which can be beneficial for improving flow and sealing when used with appropriately prepared cylinder heads.

If you're working on a performance build or a thorough engine overhaul for your BRZ or FRS, these Supertech valves offer a well-built solution for the exhaust side. They are designed to be a direct replacement for the factory exhaust valves, assuming the cylinder head is prepared for the +1mm oversize dimension.