MUFFLERS, what should i get?

I built a custom 3'' exhaust on my 440 Gold Duster. I used Jeg's two chamber Flowmaster copies under the rear seat, over the axle tail pipes with DynoMax race bullets in them and an H pipe at the rear of the trans. Its perfect as far as sound for me. Plenty loud outside the car when I hit the loud pedal but its quiet enough when cruising and there is no drone when driving around town or on the highway. You can hear it by checking my YouTube channel, its the same name I use on here; Doosterfy.