I have MF dual in / out, I did my setup a different way, almost completly got rid of the drone.
Removed rear cats and put MF in place of rear cats, went with MF because of the measurements.
Tired it in a couple different ways, but what is the best is where I have it now and dual back and got ride of the extreme bend around differential, let's sound go out the back instead of bouncing back.
In cali you might not be able to, bUT I got rid of the drone and my hours on interstate every week is alot better.