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The Manley Platinum single piston for 2004+ Subaru WRX/STi EJ257 stroker builds is a forged 2618 alloy piston specified for an 83 mm to 99.5 mm stroker configuration with an 8.5:1 dish. Manley’s Platinum Series uses 2618 forgings, premium wrist pins, and refined cam-and-barrel skirt profiles, with moly skirt coatings on select SKUs. These pistons are aimed at builders seeking high-strength, race-capable components.
Manley 04+ Subaru WRX/STi (EJ257) 83mm Stroker 99.5mm STD Bore 8.5:1 Dish Platinum Piston - Single
