This CP Piston and ring set is specified for the Mitsubishi 4B11 engine used in the Evo X and includes four pistons sized with a 90.5mm bore and +4.0mm oversize, listed compression ratio 8.8. The set provides matched pistons and rings for rebuilds or engine work where the 4B11 Evo X compatible bore and sizing are required, reflecting the exact dimensions provided in the description.
CP Piston & Ring Set for Mitsubishi 4B11 Evo X - Bore (90.5mm) - Size (+4.0mm) - CR (8.8) - Set of 4