I noticed the plastic behind the tires in the fender wells are being nicked by rocks. Appears that they can be replaced very easily but for what price, I have not determined. I'm thinking that to get more life out of the guards I can remove them and spray a coating of PlastiDip on them. Then when the coating gets too many nicks on it, I can just peel it off and re-apply a new coating. Has anyone tried this?