Impreza F4-2.5L SOHC (2003)

Valve Clearance: Specifications
Valve clearance
Intake ............................................................................................................................................................ 0.20 ± 0.02 mm (0.0079 ± 0.0008 inch)
Exhaust ......................................................................................................................................................... 0.25 ± 0.02 mm (0 0098 ± 0.0008 inch)