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Manley Platinum Series forged pistons for the 2004+ Subaru WRX STI EJ257 (99.50mm bore, +0.5mm) provide a durable replacement for high-load engines. Made from 2618 alloy forgings, these pistons include proven cam and barrel skirt profiles and tool steel wrist pins; select part numbers use moly skirt coatings. The design focuses on exact ring lands and grooves and tight manufacturing tolerances for reliable sealing and power delivery.
Manley 2004+ Subaru WRX STi EJ257 99.50mm Bore 8.5:1 CR -17cc Dish Extreme Duty Piston Set w/Rings
