You could buy it and give us an inflated exaggeration of how much power you gained out of it
Some times money is better left in a bank or spent on more REASONABLE things (like a better radio and receiver for instance).
Most people on the forums will tell you these "Superchargers" are scams kinda like those magnets you can attach to your real cars fuel line to get better gas mileage. My bet is they're right. But it's your money. If you have that much money that you need to waste some on a supercharger for your RC send some my way, I need some parts for my 1/18th truck.