I just removed that crap this weekend. another member suggested steaming the adhesive but since I didn't have access to a steamer, I used my wife's hair dryer to heat it up...then peel it off. Once you heat up the glue, it will peel off. I used my fingers to peel it off. Yes, my fingers were sore when done, but it looks better w/o that cracked/yellow adhesive. I only removed mine after I removed my running boards and installed front mud flaps.