JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore CR 8.5 KIT Set of 4 PistonsJE 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. This Part Fits: Year Make Model Submodel 2006 2008 Subaru Impreza 2. 5i 2002 2004 Subaru Impreza Outback 2005 2008 Subaru Impreza Outback Sport 2002 2005 Subaru Impreza RS 2002 2004 Subaru Impreza TS 2002 2008 Subaru Impreza WRX 2006