It's been a year and a half since I got them and never installed them because I hardly feel the need for them. Finally, I did it, and blue looks great on blue. They say "green vehicle" loud and make a statement, and they will remain as permanent beautify accessories. I used 3M paint-protection film to affix them, which is crucial. I sprayed water on paint before I placed them and then I adjusted their alignment with a bubble level so that they don't look crooked.