Tuning Switches allow you to change the performance tuning in your 2003-2004 Dodge 5.9L Diesel. Change the switch-on-the-fly programming on your vehicle with the switches available. High-idle kits work well with remote starters, PTO's and extended idling applications. BD-Power, Duramax Tuner, and Longhorn Fab Shop are just some of the high-quality brands that are available.
