So I just finished installing my Dynomax Cat back exhaust system today and it seems a little too loud for what I thought it was going to be. I wanted something that would sound throaty and strong and not be too loud so I got the super turbo muffler as everything I have heard about it is that it is one of the quietest performance mufflers around. It is incredibly loud and makes backfiring noises and I am not very happy with it. Has anybody else tried one of these out before? My Suburban had custom duals with a Flowmaster (don't know what kind) and it was not anywhere nearly as obnoxious as this one. Do they need to break in to quiet down or something?