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The Wiseco Professional Series piston set for Subaru EJ257 engines is a four-piece forged kit built to withstand heavy to severe duty applications. Manufactured from 2618 aluminum, each piston is fully machined with precision ring grooves, an anti-detonation groove, forced pin oiling and ArmorGlide skirt coating for seizure resistance and quieter operation. Supplied with premium rings; 99.50 mm bore and 30.70 mm compression height.
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.5 Piston Shelf Stock Kit
