Nothing brand new will cost that... Better look around for a used setup.
I would say a MAC setup sounds the best IMO. I have flow masters on mine and sure it sounds good, but it sounds like every other mustang out there and it drones a good amount. Plus they're restrictive mufflers.
I agree with the flows. But maybe the setup on the Camaro caused the annoying sound. A low deep rumble is exactly how I would define my Maggies until you flatten the loud pedal then it's an orgasmic scream.
But to each their own. If there was one definitive 'best' muffler there wouldn't be so damn many choices