Exhaust for a slant 6

Hi fellow FABO members, Im a newbie in the world of exhaust systems on cars and was looking for a few general suggestions. I have A "super six" slant 6 in my duster, and when i rebuild my exhaust i want it to sound cool. my plan was to use the ported stock manifold and a Super Turbo Muffler so at highway speeds i wont have to listen to the drone... is there a trick to getting that deep loud rumble sound? i know i dont have a V8 but id still like it to sound powerful at idle. any ideas? my first though was bigger pipe... Thanks in Advance!