Has anyone has this done to a standard anodised front or rear bumper? I've have my original front and rear that have been stripped of their external anodised coating, and are now raw aluminium. Not really a problem when the car only come out for a few months in the summer, but it quite quickly tarnishes when exposed to normal weather. I've recently acquired another bumper and wondered if I could have it re-anodised to restore it to something like a factory original. Can anyone advise, please?