Banks Power 20-23 Chevy/GMC Duramax DRW Crew Cab 5.0in Monster Exhaust w/ S/S Chrome Tip

Universal 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 operate properly.