JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.75mm Bore 0.25 Oversize CR 9.5 KIT Set of 4 Pistons

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, Subaru, EJ Series, 3.927 in. Bore, 9.50:1, Inverted Dome/Dish, 4 Cyl. Piston Kit Subaru EJ255/EJ257 with EJ20 Head