There is a new video for the terrain management system on the 2017 Raptor website. You have to click the video in the list of videos under the big CGI video next to where it says "See Raptor in its natural habitat". http://www.ford.com/trucks/f150raptor/
Ok so what I got from that is we can turn EVERYTHING off. I wonder if that exhaust noise in the background is the actual exhaust?