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The Manley forged piston set for 2004+ Subaru WRX STI (EJ257) combines a STD stroke 99.75mm and +0.25mm bore with an 8.5:1 dish profile and includes rings for a ready-to-install assembly. Manley's Platinum Series pistons use 2618 alloy forgings, precise cam-and-barrel skirt profiles, and tool-steel wrist pins to support reliable ring sealing and durability favored by professional engine builders.
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 8.5:1 Dish Piston Set with Rings
