CP Pistons 99.5mm 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'!"
- Bore: 99.5mm
- Comp Height: 30.68
- Comp Ratio: 9.0:1
- Material = Forged
- Size = OEM Spec
- Set of 4 Pistons, Rings Wrist Pins