electric supercharger
seriously, Ive looked it up, and long story(and a bunch of math)short youd never be able to beat Nitrous. Im no math wiz, but its something to do with the volume of air inside a tank. The average scuba tank holds 80 cubic feet of air at 3000 psi... (about as much volume as a phone booth) and each tank weighs about 30 lbs, 35 when filled. I think with the amount of air our cars need to breath properly, that would last about 3 seconds. Plus 1.5 cubic feet of air at a pressure of 3000 psi returning to atmospheric pressure has some insane energy behind it, if you were to get into an accident, and it exploded.
It been tested and would not be woth it....
I once saw pictures of an "electric supercharger" that got sucked into the intake and screwed up a head. Don't take any of this kid's advice, unless he is asking you to drive his car off a cliff. 
how much u want for that?! haha I think the only reason products such as these survive is because of the cheapos who don't understand the time and $ it takes to actually make HP. Please show your buddy what a Cobra is and why THAT is a surpercharger.
The Best V8 Stories One Small Block at Time
The same muscles are used 
THIS CHARGER IS SIMPLY AMAZING".sellers say You will see a 5-40 whp gain from this.
NO OTHER SUPERCHARGER COMPARES!!!
This is better than nitrous with no effects on the engine in any way.
-gain 5-20whp
-improve 1/4 mile times by as much as .6 seconds
-gain as much horsepower as a normal charger without adding 75lbs to the front end of your vehicle. This set up weighs less than 5lbs total.


BOSS APPROVED!
that did it!
