Provide your 2001-2004 Chevy/GMC 6.6L LB7 Duramax with performance tuning when you shop for Dash Mounted Tuners. Dash Mounted Tuners are designed for a simply installation and are easily installed utilizing your vehicles OBDII port. In most cases, each unit comes pre-loaded with user-selectable tuning tailored to each type of driving situation. Pre-programmed tunes are specially created by manufacturers so you can get the most from your vehicle. Manufacturers such as Edge Products, Banks Power, Superchips, and others produce Dash Mounted Tuners that are available at XDP.