Any ideas for meatier exhausts?

If you plan on getting into the motor wait on the exhaust, if not just run a single 2.25" from the manifold to a Super 50 flowmaster, then 2.5" from the muffler to the bumper

^ as 805 said, or even a dynomax super turbo.....they sound good and not overly loud or drone.
Least not on my buddies cars anyways.