Some initial thoughts:
I have not attempted installing the swing arms yet. As you can see from the side shot above, the lights for the 2014+ model extend out much further than for the 2010-2013. As a result, I may not be able to install the swing arms without removing the lights and/or trimming the bumper cover further. If that is the case I may end up attempting to install a 2010-2013 rear bumper cover that has the necessary room. I purchased some large heat shrink end caps that I will shrink around the posts for the swingarms and then pack with a little marine grease until the swing arms are installed. My stopgap solution was to put Ziploc baggies over the posts and use duct tape to secure them, which is what you see above. This was especially necessary given the rain we have had the past few weeks.
The quality of the Kaymar product is good. I have had a few minor fit issues, which I will detail in this thread. But overall I am much happier with this solution than the MetalTech Lancer. I like MetalTech and have bought a number of products from them in the past, but I must say that I was disappointed with the Lancer design and execution.
I suggest re-installation of the rear mudflaps. They serve to hold the bumper cover trim in place at the fender well, and provide a little help in protecting the sensors and wiring harnesses in the bumper from debris. I trimmed the mudflaps a little, but you could just as easily keep them on.
Because of how close the swing arm posts come to the reverse lights in the bumper cover, you must do all your trimming and install of the bumper cover before installing the bumper. As I learned the hard way, removing and reinstalling the bumper to fit on the cover is not something you want to have to do.
The factory reverse lights are covered by the swing arm posts, so there is no need to try to wire them up. The lights in the Kaymar bumper are sufficient.