This was well designed and fairly easy to install provided you know how to disassemble a portion of the rear bumper cover. The instructions were vague at best, built if you followed the outline, i.e. lining up the center portion first and installing it before you connected the sides and installed them, then you should have no issues at all. All it takes is a drill, a few drill bits, and a couple of 10 mm wrenches as well as a rivet gun. I chose to bolt the entire assembly together though, in case I needed to take off the bumper cover. Then all I would have to do is unbolt the sides and not have to drill out the rivets. It looks great and I can't wait to try it out on track and see the difference it makes in airflow under the car. Of all the products I searched, this was the best bang for the buck. One word of caution though, mine took almost 90 days to arrive so if you need it in a hurry, don't order this one. If you can wait, it is worth the wait.