I just dyno'ed my bike 2011 converting to a fulltime track bike., Added Full Akap shorty system, Pcv V, and Dan kyle block off plates. BMC race air filter. I could be Wrong here but I think the Power commander is more for Fuel map and Making the bike have a good power curve not so much adding horsepower. I ran it with 93' octance pump gas. Going back in a few weeks and going to run MR12 Race fuel should make 4 or 5 more hp. I had 10hp more in the mid range then someone else running akap with the long pipe. but he had better top end #'s which I expected. But on the track more mid range is better.