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Wiseco Professional Series forged pistons for the Subaru EJ257 (99.75 mm bore) are race-oriented pistons built for heavy to severe duty applications. Forged from 2618 aluminum in the USA, these pistons include precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating and fully machined crowns. Sold as a set of four for the WRX/STI 4-valve application with supplied premium rings.
Wiseco Subaru EJ257 WRX/STI 4v Dish -15cc 99.75 Piston Shelf Stock Kit
