First off, I was not expecting big HP gains with the kit. The things that I went after was the reliability (time will tell, so far, so good with around 600 miles on kit), snappier in the low and mid range with better throttle response and to get rid of the vibration. I am extremely pleased as that is exactly what I got. I also had them do the clutching and they kept it for a few days, we took it in the mountains and they tuned it. Started with the Power Commander box but we switched to the Dobeck and it cleaned it right up and has run flawlessly. Definitely feel the difference when riding - very pleased. Northstar is not on much, but you can look for pineapple1(Tyler) on here or call 208-852-1888. Hope that helps.