I saw a couple of people post their results of the Tornado. Some had dyno results. Instead of a fluctuating dyno pattern, it looked a little smoother, but had no HP gain. I don't know how they've been able to pull off their gimmick of ripping people off for so many years without getting put out of business? Just like those super chips on EBay that are only resistors on the coolant sensor's wiring. Another gimmick is that fuel line magnet that is supposed to increase mileage. What a bunch of garbage!