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Manley Platinum Series forged pistons for 2004+ Subaru WRX STI (EJ257) are supplied as standard‑stroke, 99.5mm bore pistons with a 9.8:1 dish and include rings. Built from 2618 alloy forgings, they feature proven cam and barrel skirt profiles, tool steel wrist pins and selective moly skirt coatings, providing the structural integrity and precision engine builders expect for high‑RPM or boosted applications.
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings
