If you already have sideskirts it's just a simple swap. If you don't have sideskirts, it's a little more complicated as you would have to rivet the brackets to the body.
Look under the car at the inside edge of your existing skirt. You'll see some plastic fasteners. Pull those out. Also, you'll need to take out one or two of the fasteners on the bottom of the wheelwell liners. Then, they just slide off. Reverse the process to put the SVT one's back on.
Since you will probably have some leftover mounting hardware like the brackets and rivets in the white envelope that came with the skirts, I could use a set. One set got lost during shipping. Let me know, and good luck with your new skirts!