Piston Kit Subaru Imprezza WRX STi 2.5L 16V / Engine Code EJ257 '04-21 8.5:1 CR+ OVERSIZE:0.25MM K4050D300-4

K4050D300-4

K8897D300-2

K8797D100-4

Universal Small End Bearing

K8930D200-2

Piston Kit Subaru Imprezza WRX STi 2.5L 16V / Engine Code EJ257 '04-21 8.5:1 CR+ OVERSIZE:0.25MM K4050D300-4ALL PISTON KITS INCLUDE PISTON, RINGS, WRIST PIN, AND RETAINING CLIPS UNLESS NOTED. REPLACEMENT COMPONENTS LISTED BELOW MODEL YEARS BORE SIZE ACTUAL CR IMPREZZA STi 2. 5L 16V 57cc CYLINDER HEAD 2004 2021 99. 50MM 8. 4: 1 99. 75MM 8. 5: 1 100. 00MM 8. 5: 1 100. 50MM 8. 6: 1 IMPREZZA WRX 2. 5L 16V 50cc CYLINDER HEAD 2004 2021 99. 50MM 8. 9: 1 99. 75MM 9. 0: 1 100. 00MM 9. 0: 1 100. 50MM 9. 1: 1 ITEM BORE SIZE PISTON SIZE RING CLIP WRIST PIN K9550DA 99.