Henceforth June 20 will be know as hobbit day, because this pipe is so awesome!
Just to start I would like to point out that my bike was performing properly before the Leovince, I could hit 30mph on a flat. I also used a gps to measure these speed.
I slapped the pipe on right when I got home from work. Does hurt the low end, but I usually peddle like crazy until I hit 10mph so it doesn't bug me. Very good acceleration after 10mph. I hit 38mph on the longest flat I could find, if it was longer I think I would have gone faster.
I hit about 43mph going down hill but then I lost all power and the rear wheel locked up (soft seized I think) and I nearly killed my self (luck no one was behind me). I pull over and it fired a couple times then died. Started right back up about a minute later. I need to upjet, I advise everyone with this pipe to upjet or at least do a plug chop.
Here is the best part, I can cruise at 30mph with only using about 1/4 throttle.