I'll join the party. I just (december 09) took the stock muffler off and put a MagnaFlow dual 2.5 in and out in its place. I HATED it from day one. Not wanting to put more money in the truck immediately, it is still there today. The sound has definitely mellowed out, but the drone is still there, and that is still bugging me. I love the sound at idle, WOT, and part throttle, but that drone is killing me. Basically, my long winded way of saying wait it out for a few months. Get some miles on the setup, then if you still don't like it, change it. For what its worth, when I change, I am going to go with Pypes. Cheap and they sound great.