Arctic Cat 650 H1 ATV / Prowler 650 H1 High Compression Pistons

You will see up to a 5 horsepower gain on your machine depending on all other mods. These piston kits directly replace your stock pistons. All piston kits include piston, wrist pin, c-clips, and rings. We have 11:1 and 12:1 compression available at this time.