JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports. JE, Mitsubishi, 4G63 - 01-07 Evolution VII-IX - 22mm Pin, 3.386 in. Bore, 8.50:1, Inverted Dome/Dish, 4 Cyl. Piston Kit Mitsubishi 4G63 EVO VII-IX 01-07