Wiseco Mitsubishi EVO X 4B11 Turbo -9cc 86.50mm Bore 8.8 CR HD Forged Piston Kit

If you're building a high-performance Mitsubishi EVO X with the 4B11 turbo engine, this Wiseco forged piston kit is designed for serious racers and builders. These pistons are made from 2618 aluminum, which offers improved tensile strength for demanding applications. The kit includes four pistons, each with a -9cc dish volume, an 86.50mm bore, and an 8.8:1 compression ratio, making them a solid choice for rebuilding your top end.

Wiseco machines these pistons in the USA, paying close attention to details like precision ring grooves, anti-detonation grooves, and features that improve ring seal. They also come with an ArmorGlide skirt coating, which helps reduce friction and noise while resisting seizure. The fully machined crown and forced pin oiling are features you'd typically find on custom race pistons, all built to withstand heavy to severe duty performance use.

This kit is intended for dedicated performance builds and is not CARB approved, meaning it cannot be shipped to California. Ensure you check all manufacturer installation instructions before beginning your build.