Need some exhaust system advice before removing

Those resonators were put on there because it sounded cheap and crappy without them. Ford was not in the habit of giving exhaust parts away because they were in a good mood.

The resonators smooth and deepen the tone. Basically, turns "rap-rap-rap-rap-rap" into "rump-rump-rump-rump-rump".

after having flows on half the mustangs ive owned, i avoid them at mostly any cost. magnafolw, Mac, and SpinTech are always what i say to look at. If ya have a few hundred burning a hole, just replace the header back setup with a 2 1/4 system. x-pipe and cat back. It will sound good, give a little more muscle car tone, and even though you dont need to be on a commercial sitting in a bath tub, it does sound pretty cool drivin down the road. Just a idea. But my stuff and thoughts tend to me a little more radical then some of the guys on here. But i even suggested 2 1/4 instead of 2.5...trying to keep it calm...lol

I agree avoid Dronemaster/Blowmaster. I've had them before and can't stand them. I have Dynomax Ultraflo and really like them. I also like Magnaflow. I think you would probably like Magnaflow with the resonators.