Provide your 2017-2019 Chevy/GMC 6.6L L5P Duramax with performance tuning when you shop for Dash Mounted Tuners. Pre-programmed tunes are specially engineered so you can instantly improve the performance of your vehicle. Dash Mounted Tuners install easily using the OBDII port on your vehicle. In most cases, each unit comes pre-loaded with user-selectable tuning tailored to each type of driving situation. Manufacturers such as Edge Products, Banks Power, Superchips, and others produce Dash Mounted Tuners that are available at XDP.