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Manley Platinum Series forged pistons for select Subaru WRX/STI applications are built from domestic 2618 alloy forgings and feature cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select SKUs. These pistons emphasize precision manufacturing, with exacting ring lands and grooves and unique fixturing to maintain ring-to-skirt squareness for reliable sealing in tuned engines.
Manley 04+ Subaru WRX/STI EH257 99.55mm Bore +.05mm Size 8.5:1 Dish Piston Set
