Just got back from a ride and I have to say again how pleased I am with the performance of this setup. I don't have access to a dyno but this would be a good one to have some numbers on. The second thing I did to this bike after I bought it was to go up two teeth on the rear sprocket (first was add an oil cooler to the poor beast). The added snap from this intake mod is at least as much as from the gearing change.