MUFFLERS, what should i get?

The best muffler I ever found is the Morso racing muffler... I have one on my Dart and on my Ram.... I will never use anything else... I have a 273 in my Dart and everyone ask if I'm running a BB.... I have 2.5 lead pipes into X-crossover that I converted to collector and have a single 3" out the back into the muffler with factory style tip.. I use my car on the highway and I would rather listen to motor than my music...