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JE Pistons forged piston kit for Subaru EJ257, 99.5mm bore and 8.5:1 compression, sold as a set of four. Made from 2618 aluminum and forged and machined in the USA, the design uses JE’s Forged Side Relief forging to reduce skirt width and friction. Accumulator grooves and skirt coating (where applicable) improve ring seal and lower wear. Includes wrist pins, locks and JE Pro Seal premium piston rings for demanding applications.
JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 KIT Set of 4 Pistons
