I just got an e-mail from MPT, they now have ghost cam tunes for 11-14 150's with the 5.0 coyote engine. They are running a special sale for existing customers, 50 bucks to update your tune to a ghost cam.

http://morepowertuning.com/f150-50-ghostcam-combo

 

IMHO, and this is coming from an ol timer whose family has been playing with cars since the 50's.......to my ears, it sounds like a poorly tuned engine (modern or old) as compared to a properly tuned engine that has a lope.