It's a separate piece that I didn't like. It comes with the kit, I just didn't install itView attachment 40526
So for the Aerie side skirts...on their website I thought there was a carbon piece that attached to the bottom of the front fender? I had thought it was part of the skirt, but I do not see it on your car. Was that something you just left off? Not sure how it would attach...it does seem like it would help with debris flying up.