its a cryo cooling system that you guys are talking about, I am looking into getting one my self. They have a co2 bottle like nos but dont need a bottle warmer. Are not dangrouse to carry like nos because it is not combustable. What it does is sparys co2 at high pressure, which would come out of the bottle at something like -30 to -50.
They then use a smell sealled bulb in the intake manifold that they puch co2 through like an A/C system where the liquid co2 hits the bulb it expands and creats a massive temp drop.
They also do the same for the fuel line.
All the benifets of nos with out the hassels, and to fill a big bottle (e) of c02 it would cost about $60 and for a smalll nos (b,c) it will cost like 70.