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The Wiseco Professional Series piston set for Subaru EJ257 WRX/STI 4-valve engines is a forged replacement offered as a shelf stock kit with 100.00 mm bore and specified compression height and pin diameter for the application. Machined from 2618 aluminum in the USA, the pistons feature precision ring grooves, ArmorGlide skirt coating for seizure resistance and are built to withstand heavy to severe duty race and performance engine use when installed with appropriate supporting components.
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 100mm Piston Shelf Stock Kit
