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Manley Platinum Series forged piston set for 2004+ Subaru WRX STi (EJ257) stroker applications, supplied complete with rings. Made from 2618 alloy forgings with proven cam-and-barrel skirt profiles and chrome‑moly wrist pins, these pistons offer moly skirt coatings on select SKUs and exacting ring lands and grooves. Manley’s fixturing and machining process ensures precise groove-to-skirt squareness for reliable ring seal.
Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 100mm +0.5mm Bore 9.8:1 Dish Piston Set with Rings
