We have spent many hours on developing this turbo kit. And the final result is better than expected! The engine feels very quick with the turbo. The extra 30 hp feels like twice as much. Stock muffler is used, and thanks to the turbo, the noice level is lower than on a stock vehicle. Bigger injectors and a new MAP sensor is included. The stock ECU will be re-programmed. We recommend to calibrate the clutch with three clutch weights from the latest SkiDoo 1200 clutch.