The biggest thing was it went on a 25 lb diet making a huge difference in its handling and the way it lays down the power. It went with a new carb, which improved the throttle lag that the warrior was known for. The ergonomics of the Raptor is so much better than the warrior. Everything just feels better, of course a lot of this is due to the weight loss. The exhaust was fine tuned and a few internal engine changes.