Good luck cutting them to fit over the skirts! I'm not sure if I'm going to leave mine on or not. (I have the SE skirts on the way) and I don't know if I want to go through the trouble of cutting and fitting them. But they really do help deflect a lot of the nasty grime from getting all over the side of the car. At least they aren't too expensive so if one gets messed up in the process...