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Manley forged piston set for 2004+ Subaru WRX STi (EJ257) stroker applications is supplied as a complete piston-and-ring kit for selected bore and stroke configurations. Manley’s Platinum Series pistons employ domestic 2618 alloy forgings, proven cam-and-barrel skirt profiles and tool-steel wrist pins, with precision ring lands and grooves to enhance ring seal. These pistons are intended for high-quality engine builds requiring durable forgings.
Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings
