Universal OBD-II Splitter Banks PowerUniversal fitment designed to allow you to connect two devices to the OBDII port. The plug is a right angle for minimal interference. Fitment Note: For use with Banks devices and Retractable Steps. Not intended for use with Banks devices and third party OBD monitors. Most ECMs will only communicate with one diagnostic device at a time. Using a splitter will result in the vehicle's ECM having to choose between devices. One of your devices will not