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Manley's Platinum Series forged pistons for 2004‑on Subaru WRX STI (EJ257) are supplied as a piston set with rings for the STD stroke and +0.5mm bore; they feature 2618 alloy forgings and carefully controlled cam and barrel skirt profiles. The product emphasizes domestic 2618 forgings, exacting ring lands and premium wrist pin options for durable engine builds.
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 100mm +.5mm Bore 9.8:1 Dish Piston Set with Rings
