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Wiseco Professional Series forged pistons for the Subaru EJ257 with a 100.00 mm bore are intended for high-duty and race applications. Machined from 2618 aluminum in the USA, these pistons offer precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating for reduced friction and a fully machined crown. They are supplied as a four-piece set for the WRX/STI 4-valve configuration.
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 100 Piston Shelf Stock Kit
