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 Bore 8.5:1 CR -17cc Dish Extreme Duty Piston Set w/Rings

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

Manley 04+ Subaru WRX/STI EH257 99.50mm STD (Grade A) Bore 8.5:1 Dish Piston (SINGLE PISTON)