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Wiseco Professional Series forged pistons for the Subaru EJ257 with a 99.50 mm bore are engineered for serious race builds and heavy-duty performance use. Machined from 2618 aluminum in the USA, the set includes precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating for seizure resistance and a fully machined crown. Supplied as a set of four for WRX/STI 4-valve engines.
Wiseco Subaru EJ257 WRX/STI 4v Dish -15cc 99.5 Piston Shelf Stock Kit
