I wanted to debate those two brands also. I paid WAY more for the FI one because of their reputation. One of the Bimmer guys here has a FI one on his car, and at a show a CF specialist said that it was one of the best works he's ever seen. Well, I got a FI one and the fitment on my sedan is a little off, I had to add washers-- alot! And it still looks a little off. I am reluctant to drill holes for hood pins... btw, where do you guys mount your washer nozzles now? (again, I don't want to drill my CF)