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Manley Platinum Series pistons for 2004+ Subaru WRX STI (EJ257) applications are forged from 2618 alloy and engineered for high-demand use. The set includes precise cam-and-barrel skirt profiles, tool steel wrist pins and moly skirt coatings where applicable. These pistons focus on strength and durability for builders and tuners seeking a robust forged replacement that supports aggressive engine builds without compromising reliability.
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.55mm +.05mm Bore 8.5:1 Dish Piston and Ring Set
