Impreza WRX STI F4-2.5L Turbo (2008)
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.)