The WindShear TopShot II is designed as a stand alone drying system that uses two 30hp magnum blowers, plenum and one overhead air delivery bag to direct air over a vehicle as it passes under the equipment arch. The TopShot II's magnum blower assembly is manufactured from steel that is powder coated while the plenum is made from aircraft grade aluminum and the 83" bag is produced from durable Proto-Duck material. 
The drying quality in the WindShear dryers far surpasses any comparable horsepower dryer in its class.