Mr freeze uses a boost signal to pressurize the tank, which then sprays water/meth into the intake based on the amount of boost that the supercharger makes. The mix atomizes fine on my car at only 10psi and the air drawn into the supercharger helps as well. I will agree that if you have the extra money for the snow kit as well as the more complicated install, I would get the snow. I will also say that for the money mr freeze works wonders and has not been proven to create any problems....only power in my case.