I pulled my Dynomax Super Turbos from both my cars and went with Hooker Aero Chambers. Best sounding/performing muffler I ever had. You can see right through them too. They are quiet at idle and part throttle, and not too loud at wide open throttle. I'm I big proponent of using oval-shaped exhaust tips to sweeten the sound of an exhaust system. Same principle as horns at work there. Makes for a smoother, less harsh sounding exhaust note.
A buddy of mine added a pair of 28" long tubes to his exhaust starting just behind his crossover. They are welded to his main exhaust pipes and must have a flat cap on the end. It cancels the sound waves and eliminated all his drone issues. It looks cool too.