Great article. Maybe the results from their scientific testing or crap like the Tornado FuelSaver and Intake Twister will finally kill the increased MPG/performance dreams of those who want a miracle device:

"THE DYNO SAYS: Both devices reduced peak horsepower by more than 10 percent. The Intake Twister increased fuel consumption by about 20 percent; the TornadoFuelSaver provided no significant change."