Manley Subaru WRX STi (EJ257) 99.5mm Bore STD Size 8.5 CR 83mm Stroke Piston w/Ring *SINGLE ONLY* subaru-outback-xt-2009 APR Carbon Fiber Radiator Cooling

APR Carbon Fiber Radiator Cooling Plates can be utilized to channel the flow of air directly to the radiator

A Flex Fuel Sensor is required and not included

- 75A durometer polyurethane

Subaru 2004-2007 STi

Manley Subaru WRX STi (EJ257) 99.5mm Bore STD Size 8.5 CR 83mm Stroke Piston w/Ring *SINGLE ONLY* subaru-outback-xt-2009 APR Carbon Fiber Radiator Cooling04 11 Subaru WRX STi Platinum Series Piston Single by Manley Performance Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Round wire locks, tool steel wrist pins, and rings are included with every set at no additional charge.