Message: I got dual exhaust on my 3.9 4x4 last year. When choosing the muffler to go with the pipes the guy at the swap-meet talked me into getting the ‘quieter’ muffler. Now, six months later, I want more sound! I want to keep the pipes, but get a new muffler. Any tips on a good place to order a kick-butt muffler, and which brand/type is the best? thanks