It is a simple device and does not seem to be doing anything very special. When it is enough, the computer tell you so by turning on a small yellow indicator lamp, check engine light. Lift the old engine, bolt down a pre-made piece of steel rail (to make up the height difference), and set the new engine in place. These tires have no tube and are regularly filled with foam. Initially, A-Star will be exported to Europe and then will slowly move on to other countries.