I purchased an 09 Sportsman 550 XP with EPS about 2 months ago. It overheated at about 80 miles...also developed a "clunk" in the front end when applying the brakes. The dealer called me a couple of days later and told me the ECM was bad. They replaced it quickly with one from another new unit in their inventory. I went to pick up the machine and I was told just to drive it....couldn't duplicate the clunk. I have only ridden it for about another 20 mles since I picked it up. I jacked up the front end today and locked the brake lever. I checked the ball joints and other front end pieces. The lower A-arm bushings are bad...both sides have a lot of play/movement. Will be off to the dealer again tomorow. Anyone else have tihs problem??? I have read other posts where tha ball joints have snapped within 200 miles. I have read that newer build date machines have different A-arms. This machine rides great...I just hope I can get the bugs worked out soon.