That sure does look like a big job. And I'd be worried that I'd never get it back in the way it was before.
But the trunk and under the rear seat areas looks easy. I wonder if that would make a significant difference? And would it quiet rear end whine?
Removing the seats and carpets seems easy, but the center console and some trim panels might be a pain. I'd imagine one could effectively Dynamat their Mustang just removing the seats and carpets, but it may be necessary to remove the center console to get the carpets out.
2012 GT Premium, Brembo PP, MT82, 3.73s, Blk/Blk. Bama 93R, Koni Yellow Rear Shocks, Hawk Ceramic pads, Luxurious & Plush Floor Mats