I have an 09 that I put 2 Grand into to get 165-170hp, if I was to buy another sled tomorrow it would be a 2010 for sure. It has the added hp right out of the package. I am still waiting for slp to dyno a 2010 to see how it compares to a 09 with the performance package. The 09 with the performance package dyno'd at 169hp. I would be surprised to see the 2010 make that stock but even 160 stock is excellent. 160hp and full warrantee, I would go 2010 without a doubt.