Sparks Racing spent years coming up with engine hop ups for the Polaris RZR before they ever sold one to the public. Along with power increases, the team at Sparks wanted to keep the levels of reliability close to stock or better.
To do this, the kit includes a brand new cylinder with larger wager jackets, strong Carrillo brand rods and custom CP pistons manufactured exclusively for Sparks Racing and gaskets. For even more precise power gains, you can pair one of these kits with valves, valve springs and a cam set. Cost: $2299. Contact: http://www.sparksracing.com