There used to be a REAL electrical supercharger available. Back in the day I suppose.
Paxton style with a modified starter motor built into it. I think about 10 pounds of boost for about 30 seconds before the motor over heated.
It had to have its own battery too and cost a couple of thousand dollars.
The electric supercharger of today is a boat bilge blower that is the same as the add-on VW Bug heater blowers.
A restriction to air flow at any speed above Idle.
A powered "Tornado" would be an apt description. Just Burn the money and save the shipping