This topic is discussed in several threads. The factory hitch sits higher within the chassis and is truly hidden compared to the third party hitches. The factory setup requires the rear bumper cover to be removed and a section notched out so the receiver has higher ground clearance. The third party hitches sit lower and generally will fit all the years. You have to decide which is more important. The third party hitch is cheaper, easy to install, ugly (to some) but you give up ground clearance. The factory is more expensive, more labor intensive to install but gives more clearance and is ,for the most part, truly hidden.