Originally posted by Section8Blammo
Maybe try making some steel/aluminum shims to support the kit from below. I'm in the same boat sort of. My front bumper stays very well but my rear bumper is starting to sag. It looks like I need to just reinforce it from underneath, and it should retain its shape much better. The kit has very little lower support right now. Maybe that'd work for your side skirts as well.
thanks for the good idea!