Damn, beat me to it.

 

You mean I should have known better than buy it? not

 

In theory, an electronic supercharger would be great. No pulley brackets to hook up, and no drag on the motor. The only problem is that it would take so many amps that it is not feasable. At least, not with present technology. Perhaps one day in the future...

I like the way some of those ads talk about stacking them next to each other to increase the boost. Actually, it would not do anything since the impellors all would be spinning at the same speed. It would just look dumb.