
Manley single forged piston for 2004+ Subaru WRX STI (EJ257) is supplied to standard stroke and bore specifications and benefits from Manley’s Platinum Series pedigree. The company’s pistons use 2618 alloy forgings, premium wrist pins, precise ring land and groove machining, and cam-and-barrel skirt profiles to support high-performance engine builds and durability under demanding use.
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston (Single Piston)