Wiseco Mitsubishi EVO X 4B11 Turbo -14cc 86.75mm Bore 8.8 CR HD Forged Piston Kit

If you're building a high-performance Mitsubishi EVO X with the 4B11 turbo engine and need pistons that can handle serious abuse, this Wiseco forged piston kit is a solid choice. These aren't your average pistons; they're crafted for the demands of racing and heavy-duty builds where reliability under extreme conditions is paramount. They're designed to replace your stock pistons and form the foundation of a powerful, durable engine.

Wiseco makes these pistons from 2618 aluminum right here in the USA, which gives them improved tensile strength for handling the high pressures and temperatures of a boosted engine. You'll find precision ring grooves, anti-detonation features, and extra sealing to keep combustion gases in check. Plus, they come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and keep things quieter. The fully machined crown and forced pin oiling are details that show these are built for severe duty.

This kit includes four pistons, each with an 86.75mm bore and a compression ratio of 8.8:1, which is a common target for modified 4B11 engines. Remember, these pistons are not CARB approved and cannot be shipped to California. For a serious build, you'll want to ensure you have all the necessary supporting components and follow proper installation procedures.