There is only so much we can do with a slip-on short of running no muffler at all so most of the testing was done in the feild.
We test our products more in the feild than we do anywhere else because it is more important that a you see gains in the feild rather than on the dyno. We also see product produce more hp on the dyno all of the time and not show it in the feild.
The bottom line is our slip-on works great on this bike. If it didn't work we wouldn't sell it.