Quote from the site:-
"The CryO2® system uses liquid carbon dioxide (CO2), stored at 80 degrees below zero (Fahrenheit), to super cool intake air, fuel, and even a vehicle’s turbo intercooler, resulting in more power and cooler engine combustion chamber temperatures."
There is no such thing as liquid carbon dioxide, it turns from solid to gas and vice versa. There is no liquid phsae. That's why it's commonly called dry ice.