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Manley Platinum Series forged piston set for the Subaru 2.5L EJ257 WRX STI, finished with a 99.50mm bore, 1.209in compression height and -17.00cc crown. It’s aimed at high-output engine builds that demand reliable reciprocating parts. Domestic 2618 alloy forgings, cam-and-barrel skirt profiles and tool-steel wrist pins combine with moly skirt coatings on select SKUs; precise ring lands and unique fixturing improve ring seal and machining accuracy.
Manley Subaru 2.5L EJ257 WRX STi Piston Set - 99.50mm Bore 1.209in CH, -17.00 CC
