here's what i can remember from the chineese man + my thoughts:
Better gas mielage? BULL SHEAT! If it spins the air to get more in the engine you gonna lose gas mielage... Turbo your car with a real turbo, do you gain 20mpg NO you lose like 5-10mpg, if it does add power you will lose like 2-4ish mpg depending on how you drive
![Razz :-P](./images/smilies/icon_razz.gif)
Installing more than one for more power? WAIST, you can only get something so effiecint before its pointless to try anymore. If one of these things tornados the air enough to give power than two would possibly degrade the already made tornado from the first in the path
up to 30hp? maybe at like 9billion rpm. This only makes the air being pulled into your engine a bit thicker, doenst make the engin pull more. I bet you would see less gain doing this than swaping a stock intake for a cold air intake
ive seen a motorized one of these that sucks so much air at the hit of a button that it could hover... that i think cost the same amount of cash... i wouldnt wase any money on this, MAYBE the motorized one...
my 2 cents...