No. Dynos have showed NO gains, and no economy gains either. It's a little fan to block some air through your intake.
I looked into this as well for a while, because I was curious how it could do anything, but I found out from quite a few people that it was not useful at all.
If you want to try it, and see what happens, it's pretty cheap, so if you're going to experiment, it would be a good thing to do, as it won't damage anything, and it's not expensive.
Last edited by mahalaleel : 08-07-2005 at 07:36 AM.