CP Pistons Manley H Tuff Rods WRX Sti EJ255 EJ257 10.0:1 100mm Fitment: 02-12/Subaru/SC7417: Impreza WRX STi / 15024-4: Impreza Wrx Sti/SC7417: EJ257 / 15024-4: EJ20 EJ25::This is a full set of pistons, rings, pins, rods, and rod bolts. Locks are not included with CP Pistons for the Subaru Engines |