Why waste the money on one of thoes when you can go to lowes or home depot and buy an electric leaf blower, hook up one of thoes light switches that you turn to dim and make the light brighter, splice into the main power wire with that, mount it inside your car, and once you take off crank it up all the way (or however much you want) and prepair to feel the power increase. I did this back when I first bought my car and I dynoed 250 to the rear wheels on an otherwise completly stock 5.0
I think someone has been sniffing too many turbo fumes.