Super Alloy Engine valves represent the highest level of advancement in valve technology. These valves are designed to meet the extreme thermal demands of today's Nitro, Supercharged, Turbocharged and Marine engines Fits: SUBARU BRZ 2.0L - DOHC 16 VALVE (FA20) - 2012-2014 Dimensions: Head diameter: 30mm Shaft diameter: 5.45mm Length Overall: 95.3mm Tip Length: 7.5mm Super Alloy Engine valves represent the highest level of valve technology advancement. These valves are designed to meet extreme heat requirements in today's Nitro powered, supercharged, turbocharged and offshore engines.Fits: SUBARU BRZ 2.0L - DOHC 16 VALVE (FA20) - 2012-2014Dimensions: Head diameter: 30mmStem diameter: 5.45mmOverall length: 95.3 mmTip length: 7.5mm