Bringing this back from the dead. I just did this mod and i'm very happy with it, I did all the cutting on the back of the lens housing not the bumper. Then I used 3m double sided tape to hold on and seal the lens, not silicone. There are no gaps anywhere. To swap out the lenses was a breeze as well, took all of 30mins to do, and I took my time. The passanger side is a little more difficult because the washerfluid bottle is in the way.