Installed some mirrors I purchased like 2 years ago for my brother. He was to put them on his old fenders on an old BMW his has before we replaced the fenders for body/paint work as a joke...
Dug them out and pulled the inner trim and self tapped them on. I'll be driving the next week or 2 with both factory and these on till I get use to them, then I have to get my car inspected. After inspection I'll be removing the factory ones and double siding some ABS plastic on the outside to cover the factory mount holes.