Don't take this the wrong way but... what you have created is liable to be just as rust prone as what you removed except it's more exposed to salt and also hopefully washing....not to mention it would drive Simon Cox (original VX designer) to drinking. Again, don't take me wrong, we have two '99's that I powerwash each week snow or shine and I do flush that bumper area extensively. So far no bad rust, yet. Stay tuned.