I had my dealer install the lamps at my first service. I think with the install it was $200. Money well spent. I wish I had cut the plastic holes out though, I would have done a better job and ended up tourching the ruff sawn edge smooth. They wanted to sell me a new lower plastic piece with the cut outs already in it but I told the tech to do the best he could so I really can't complain. They do work, now I see the deer on the edge of the road.