The Dynojet Power Commander plugs inline with your bike's stock fuel injection system. It uses OEM style connectors making installation easy and quick. The PClllusb allows a full range of fuel adjustment, as much as +/-100% over stock. Adjustments can be made with either a Windows based computeror by using the face plate mounted buttonadjusters. No permanent changes are made to the bike's system. Once the unit is removed the bike reverts back to its stock setting.