Wiseco offers hi-performance snowmobile pistons. Wiseco's Pro-Lite pistons are the perfect fit between technology and performance. Extensive research and development test programs combined with manufacturing techniques will satisfy all of the performance needs you crave while providing proven dependability. With the squeeze of the throttle you will experience the acceleration and the torque that puts you in the lead while others can only follow. Pro-Lite Piston Kits are also available for Arctic Cat, Polaris, Ski-Doo and Yamaha. They are sold complete with pistons, rings, wrist pins, circlips and top end gasket kit. One chrome-faced high temperature alloy, internally notched compression ring.