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, Honda, L15B7 Turbo, 2.894 in. Bore, 10.30:1, Inverted Dome/Dish, 4 Cyl. Piston Kit Honda L15B7 Turbo