I went to a Magnaflow muffler from my PV2 for the same reason. The muffler shop I went to test fitted several Flowmaster and Magnaflow mufflers for me before I bought one. I could hear the differences between each muffler and this helped select the one I was looking for. The Flowmaster's seemed a little raspy when you put the throttle down. The Magnaflow is still loud but has a good sound to it. It has that nice deep tone when you turn over the engine and isn't so loud that it's annoying. It is noticibly less loud then the PV2. I also heard a VX with an Aeroturbine on it. It was equally as loud as my PV2 and it too sounded a little raspy when you accelerated. I didn't care for it much. As far as performance, I didn't really notice any difference. I do have a supercharger with a 5PSI pulley on it, so that may be the reason I did not see any noticible difference in performance between the PV2 and the Magnaflow.