An attachment assembly to convert an existing leaf blower into a device for drying vehicles. The attachment assembly includes several interchangeable modular sections, including an adapter section configured to attach to the air outlet of an existing commercial leaf blower. Other sections include air outlet nozzle sections, an extender section, and a weighted section. The inlet side of the nozzle sections, extender section, and weighted section as well as the outlet sides of the adapter section, extender section, and weighted section are uniform so that any of the outlets may be mated with any of the inlets. This allows any configuration of sections desired to be achieved. The adapter section may have a filter placed in the air stream to prevent debris from being blown into the vehicle and damaging the exterior of the vehicle.