For those of you that know about the mud flap garnish on the 350x's, you know that they're pretty expensive. Over time they start to fall off the fenders. That's because there are little brass inserts in the fender and they wiggle out after a while. This is how we fixed ours. We went to McMastet Carr and ordered threaded plastic inserts and we epoxied them into the plastic so they can't wiggle out. The oem brass inserts are hard to find so this works a lot better. Then we got machine screws and we put blue loctite on them and done. Works great.