I just got my new 2010 polaris 800 back from goodwin performance in zion, il 847-872.4001, goodwinperformance.com, ask for Greg he is the owner. They studded my track and put the clutch kit in. Great guys! My buddy had his new 2009 renegade 800 done there as well. They definately know there ski-doo's. -Jonathan
DJ's kit seems to be the kit of choice for Doo. I have an 07' 800 and would order DJ's kit if I hadn't already blown the budget on longtracking it this year.