I installed my BAKFlip Roll-X Tonneau Cover today. I got it from member stryker291982. I am pretty sure I bought most of his truck by now. It was a little frustrating trying to get the cover in the two tracks by myself. I recommend you have someone for that part anyway. The pics:
I had a minor heart attack when I first put the actual cover on the rails. The lugs were too far apart to fit in the tracks. At first I thought Ram once again made a change to their trucks in making the 2013 bed narrower then the previous years. Turns out it was backwards. As soon as I turned it around the lugs fit in their tracks. As noted in most other posts about these covers I didn't need any shims.
The top is heavy and awkward to move by one person. This is where I suggest you get a friend to help place it in the tracks. This would be a five minute job that turned into twenty with one person because the cover kept slipping off one side when I was trying to line up the other.
The only very minor thing is I wish the clips for the cinch straps were hidden until needed. They sit on top of the cover and mess up the clean look the cover otherwise has.
All in all very glad I went with this. I really wanted the BAKFlip G2 but the prices are outrageous on the tri fold covers.