CP Carrillo 4B11 Evo X 9.0:1 86.5mm Bore Pistons (SC7221) ARP here is the link to

here is the link to Wiseco's catalog:

The design (inlet in the middle of tube that is seam brazed) increases the heat transfer surface area of the tube by approximately 15% over regular tubes

mild steel or stainless steel

• PRV Activation: 150 PSI

8 is splash and dust proof

CP Carrillo 4B11 Evo X 9.0:1 86.5mm Bore Pistons (SC7221) ARP here is the link toThe CP Carrillo Piston Set for the Evo X include 4 pistons, rings, wrist pins and pin clips with a 86. 5mm bore size and 9. 0: 1 compression ratio. Vehicle Fitment: 2008 2015 Mitsubishi Lancer Evolution X More Info: "CP Groove" stands for Constant Pressure Groove. This groove works as a channel on the lower part of the top land that equalizes pressure to the back of the top ring groove. When used in combination with lateral gas ports, the CP groove