CP Pistons 99.75mm Bore 9.0:1 CR 2006-2014 WRX 2004-2021 STI
CP Pistons - Sport Compact Pistons: Whether you are racing a Honda, Acura, Mitsubishi, Toyota, Nissan, or Subaru, CP Pistons has specially designed high-performance pistons off-the-shelf. In most cases, these will directly replace the stock pistons.
Throw these forged high strength aluminum pistons in and turn up the boost and get more power from your WRX/STI! These CP pistons have been put through rigorous testing. In short, they are built to withstand nearly whatever you can throw at em'!
Comp Height: 30.68
Comp Ratio: 9.0:1
Material = Forged
Set of 4 Pistons, Rings Wrist Pins