So I just picked up a HyperTech Max Energy (3 level Programer) for my 04 Dodge Ram 3500 SLT Quad cab DRW 4x4. Has anyone ever tried this type of unit on their trucks? Any good or bad anyone has would be important to hear. Seems straight forward with the install. I am not looking to break anything, just get better fuel mileage out of my truck.