The Manley Platinum Series forged piston set for Subaru EJ25 engines is a +0.5mm (100mm bore) flat-top assembly supplied with rings and engineered for extreme-duty use. These pistons use domestic 2618 alloy forgings, precise cam-and-barrel skirt profiles, and exacting ring lands to improve seal and durability. Standard Chrome Moly wrist pins and advanced machining fixturing support consistent fit and reliability for professional engine builds.
Manley Subaru EJ25 100mm Bore Over Size .5mm Extreme Duty Flat Top Piston Set with Rings