A couple years ago I made a road trip and went through some nasty weather. The pop rivets came loose in the fender and they rubbed on my stock tires. When I replaced the front valance/bumber cap, i went ahead and trimmed the plastics and molded the liner. The only thing I had to do was hammer the pinch weld about a half inch to clear a full lock. The rear hits the shock cover when I flex. I am never off road so that is not a major issue.