Stay cool with Classic Auto Air's Daily Driver Series under dash, cool only complete A/C Systems. Our attractive, HI-output under dash units with built in controls mounts easily to the bottom edge of the dash. The original factory heater system remains untouched by the installation. High horsepower engines, no problem! The state-of-the-art Sanden-style compressors have a continuous duty rating of 6,000 RPM, requiring an insignificant amount of power to turn it