This CP Piston and ring set for the Mitsubishi 4B11 Evo X is specified with an 89.0mm bore, +4.0mm oversize and a compression ratio listed as 8.8, supplied as a set of four. The description provides explicit sizing and CR details for technicians matching pistons to the 4B11 Evo X build, reflecting the exact measurements given in the source.
CP Piston & Ring Set for Mitsubishi 4B11 Evo X - Bore (89mm) - Size (+4.0mm) - CR (8.8) - Set of 4