Same thing as the "Tornado Fuel Saver." As said above you are not going to notice anything spectatular. Supposedly the EPA ran a test on them and found that it didn't do anything. I'll let you read more,
here. You would be better off adding a 5 HP sticker.
Last edited by nate886; Feb 19, 2005 at 10:54 PM.
Reason: I found what I was looking for...