JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.5mm Bore CR 8.5 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, 3.917 in. Bore, 8.50:1, Inverted Dome/Dish, 4 Cyl. Piston Kit
Subaru EJ255