Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
This CP single piston is made for Subaru EJ257 engines used in WRX STi models, sized to 100.5mm bore (+0.5mm) with a 9.0 compression ratio and supplied as a single piston unit. It matches the piston's bore and compression specification for rebuilds or engine refresh work where that exact bore and CR are required. Sold individually for selective replacement or matched sets assembled separately.
CP Piston & Ring Set for Subaru EJ257 WRX STi - 100.5mm Bore +0.5mm Size 9.0 CR *Single Piston Only*
