Home > Subaru > STI 2015-2018 > Engine Build > Cylinder Head > Valves > Standard Size
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GSC Chrome Polished 32MM STD Size Exhaust Valves 02-14 WRX / 04-17 STI GSC Chrome Polished 36MM STD Size Intake Valves 02-14 WRX / 04-17 STI GSC Chrome Polished Super Alloy STD Exhaust Valves 02-14 / 04-17 STI
STD Size STD Size STD Size Super Alloy