I love the sound of those tire removers. (I don't know the actual name for it, we've just started using it in autoshop) Anyways it uses compressed air to work the machine and you push down the pedal and air turns the tire and you use a wrench like thing and twist off the tire. Anyways, what the air sounds like is basically the S&S SCreaming Swing/Drop Towers. Its a very very good sound and it makes me all guiddy whenever I hear it.