The Wiseco Professional Series forged piston set for Mitsubishi 4G63 (87.00mm bore) is a race-focused kit of four pistons engineered for heavy to severe duty applications. Forged from 2618 aluminum and machined in the USA, these pistons include precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating for seizure resistance and reduced friction, and features such as forced pin oiling for durability under high loads.
Wiseco Mits Turbo DISH -17cc 1.378 X 87MM Piston Kit