Manley Subaru EJ257 99.5 Grade A Bore 8.5:1 -17cc Dish Platinum Series Piston (Single Piston)

Manley 2004+ Subaru WRX STi EJ257 99.50mm Grade A Bore 8.5:1 CR -17cc Dish ED Single Piston w/Rings

Manley 2004+ Subaru WRX STi EJ257 99.50mm Grade B Bore 8.5:1 CR -17cc Dish ED Single Piston w/Rings

Manley Subaru EJ257 99.75mm +.25mm Bore 8.5:1 Dish Platinum Series Piston with Rings