Abstract: A system to cool the charge air of an engine including a cylinder, a cylinder valve, a delivery hose, a cryogen, an aerodynamic, hollow heat exchanger with inlet and outlet ports which is charged or frozen by passing the cryogen such as nitrous oxide, carbon dioxide, nitrogen or other such gas or liquid with cryogenic properties through the device. The heat is transferred from the body of the heat exchanger to the circulating cryogen thus freezing the body of the heat exchanger. The heat exchanger is installed in the charge air flow as not to disrupt the flow and the heat from the charge air is transferred to the frozen heat exchanger as they come in contact. The heat exchanger can be installed into the existing charge air intake system or be preinstalled in an attachable segment of air charge tube that can be mounted into the current charge air intake system of an engine.