Are you serious right now, or are you fucking with us?
Here is a drag race where my bike with pro circuits beats other bikes with pt mids, pro circuits, and CPI pipes. The other bikes with cpi and pro circuit pipes are even strokers. So now what?
You need to understand that just because someone says this pipe did this, or I have these dyno sheets that say this pipe is better than anything else. Doesn't mean they are not lying or telling you the entire truth about the test. Pipes have to be matched to parts, and everything has to be matched to portwork, then all that needs to be done in accordance with your riding style. In about every instance I can think of, I have seen pipes like the cpi out perform the toomey T5 and T6 as a mid-top pipe. There is no such thing as an "all around" pipe for any 2 stroke. Manufacturers are telling a bold faced lie when they say stuff like that. You can't trust any manufacturers dyno spec sheets or claims either, they always think they make the best pipe no matter who it is. If you want to know the truth behind a pipe do research and ask people who have used them or tested several. Anyone can get skewed results even if they dont have something as simple as jetting dialed in, hence why some of those guys I drag raced didn't win.
http://www.youtube.com/watch?v=SMy56wVF1-I