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The Wiseco Professional Series forged piston for Subaru EJ257 WRX/STI 4-valve engines is a single replacement sized to a 100.00 mm bore with 1.209 in compression height. Intended for heavy-duty race and boosted applications, it ships with premium rings. Made from 2618 aluminum and machined in the USA, it features ArmorGlide skirt coating, precise ring grooves, anti-detonation groove and forced pin oiling.
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 100mm Piston Shelf Stock
