Part#: SC7420
Model: WRX STI
Engine: EJ257
Compression Ratio: 8.2
Compression Height (in): 1.208
Pin Size: 23mm
Rod Length: 130.5
Stroke: 79
Bore Size: 99.50mm (Standard)
Ring Thickness (mm): 1.2 x 1.2 x 2.0
Ring Part#: RS1658-3917
Made In: USA
Part Description:
CP pistons are compatible with oversized valves and high lift camshafts. CP Pistons represent the highest quality and is engineered for maximum power.
This Piston full Set includes: 4 aluminum pistons / 4 sets of piston rings / 4 wrist pins / 8 locks