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This CP Piston & Ring single-item set is a replacement piston for a Subaru EJ20 WRX with a 93mm bore, +1mm oversize and 8.5:1 compression ratio. Supplied as a single piston and ring set, it matches the listed bore and size specifications and is intended for engine rebuild or repair where that exact bore and compression spec is required.
CP Piston & Ring Set for Subaru EJ20 WRX - Bore 93mm - Size +1mm - CR 8.5 (Single Piston)
