Wiseco Mitsubishi EVO X 4B11 Turbo -9cc 86.25mm Bore 8.8 CR HD Forged Piston Kit

If you're building a high-performance Mitsubishi EVO X with the 4B11 turbo engine, you need pistons that can handle serious stress. This Wiseco forged piston kit is designed specifically for those demanding builds where reliability under extreme conditions is paramount. These aren't your average pistons; they're crafted to be the foundation of a powerful and durable engine capable of withstanding heavy to severe duty race applications.

Wiseco starts with 2618 aluminum, a material chosen for its improved tensile strength, and then forges and machines each piston right here in the USA. You'll find precision in the ring grooves, anti-detonation features, and additional ring seal improvements, all working together to ensure a solid seal and efficient combustion. The crown is fully machined for accuracy, and they even feature forced pin oiling to keep the wrist pin lubricated under high loads. Plus, the ArmorGlide skirt coating helps reduce friction and noise while resisting seizure, keeping your engine running smoothly even when pushed hard.

This kit is intended for serious racers and builders who are pushing their 4B11 engines to the limit. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Ensure you consult with your engine builder or refer to the manufacturer's installation instructions for proper fitment and assembly details.