I just don't see the harm in letting them play around with it. I'm not saying it will work, or it would be worth buying, but that is how mods are created, by experimenting. Maybe thier spacer will end up having a muffler on it or something (being funny). I understand why it shouldn't work on a fi engine, at the same time I have seen them work on jeep inline fi engines. I had one on my 5.4 v8, and nothing. I have one on my ranger 4.0, it makes a neat whitsle like a turbo, but thats about it. "O', and it's pretty. So Iv'e seen them work, and not work, maybe they will find something that nobody else has found, if not, it's thier time that has been wasted. I supose the turonator worked on something somewhere down the line, and no I don't have one, or have I ever tried it, or plan to. Even as dumb as I am, I don't see how an obstruction in the intake could help hee hee.