I've been in the same boat with my Silverado for a while now. I hear others that sound really good, and I want to make mine a little louder. Then I think about living with it daily. Plus I'm not going to get rid of the AFM, and most report a helicopter sound when it kicks down to a V4. It's fun to think about it, but I haven't pulled the trigger yet. Plus my wife says, you already have a muffler, why change it. She's the voice of reason around here