Best duel exhaust mufflers for Dart 318

I have been getting all kinds of helpful recommendations for my 71 Dart. I am also looking to install a dual exhaust system and use the stock manifolds. There is a guy near me who fabricates exhausts and he is asking me to choose my own mufflers. What are the best mufflers for throaty sound. I want a little rumble but not annoying at cruising speed. Thanks folks!