What is the little white plastic thing for that is bolted to the front end? There is one right behind each of the front brake calipers. I took my front end apart last night to detail it and I had to remove these things and they dont look like they do anything to me. I will probably put them right back on but figured I would ask what the heck they are. They are white nylon type plastic in the shape of a horseshoe and go around the rotor like the caliper and fit right behind them being held down with a 10mm bolt.