Of course, Darin's rigorous testing has demonstrated only that AirTabs have no empirical effect on
aerodynamics of light duty passenger vehicles. Still to be determined is the degree of effect of AirTabs on the foot of the driver.
But hey, if the placebo effect can improve your fuel efficiency by 5-10%, isn't that a good thing? LOL.
Maybe that should be my next mod: I'll install placebos all over the Prerunner! It has to work. After all, the miraculous effects of placebos have been thoroughly proven in more scientific studies than any other product in history. If someone can get me a pack of convincing literature and a few diagrams and photos, I'll make a DIY version.