Wiseco 2008+ Mitsubishi 4B11 EVO X 87mm Bore 0.04 Oversize 86mm Stroke 3.5cc Vol 10.5:1 - Set of 4

If you're rebuilding the engine in your 2008 and later Mitsubishi 4B11 EVO X for serious performance, a strong set of pistons is where you start. This set from Wiseco is built from 2618 aluminum, a well-known material for its improved tensile strength, making it a solid choice for demanding engine builds. These aren't just off-the-shelf parts; they're designed and machined in the USA with features aimed at serious racers and builders who push their engines hard.

You'll find precision ring grooves, an anti-detonation groove, and other features to improve ring seal, all working together to handle heavy to severe duty performance applications. The crown of each piston is fully machined, and they come with forced pin oiling to keep things well-lubricated under stress. Plus, the ArmorGlide skirt coating helps reduce friction and resist seizure, contributing to quieter operation and better durability. This set is 0.040 inches oversize, meaning it's intended for a cylinder bore of 87mm, and features a 3.5cc volume with a 10.5:1 compression ratio.

This piston set is intended for competition use and is not CARB approved, so it cannot be shipped to California. It's a comprehensive package for those looking to build a robust engine for racing or severe duty applications.