Originally posted by kinyo
i guess the cryogen part is what's inside the tank ... liquid carbon dioxide?

another guess ... this stuff is only for racing because that cryogen in the tank won't really last long if its going to be used to cool the intake air
the system is used in the same way as a nitrous oxide kit. Its only activated when more power is needed. Even NOS doesn't last very long, just enough to make a difference.