Impreza WRX STI F4-2.5L DOHC Turbo (2007)
Piston: Specifications
Piston
Outer diameter
Standard
A .......................................................................................................................................................... 99.505 - 99.515 mm (3.9175 - 3.9179 in)
B .......................................................................................................................................................... 99.495 - 99.505 mm (3.9171 - 3.9175 in)
0.25 mm (0.0098 in) OS ............................................................................................................................ 99.745 - 99.765 mm (3.9270 - 3.9278 in)
0.50 mm (0.0197 in) OS .......................................................................................................................... 99.995 - 100.015 mm (3.9368 - 3.9376 in)
