I had a V&H Propipe High Output on my 2010 Ultra Limited with 255 cams, V&H VO2 naked aircleaner and PC V. Fantastic performance. Only drawback was it was a bit loud. When cruisning along wearing the headsets so we could talk over the intercom, if you got to a hill where the cruise or your throttle hand increased the throttle, it would beller enough to key up the intercom. I had to set the sensitivity on the intercom quite high so the loud exhaust would not activate it(it has voice activated which is adjustable and PTT/push to talk). We finally just turned the voice actiavted off and used the push to talk feature so the loud exhaust wouldn't key it up. I am trading a trike in on my new 14 Limited which is sitting at the dealer waiting to be picked up. I just gutted tha cat and am running the stock mufflers for now. If I want more sound, I can always put the Propipe back on. The high output Propipe I have is black and has both the bungs for large and small O2 sensors. Overall very good performance and it looks nice, but like I said, it is a bit loud.
