Bully Dog for Cummins 400 HP
Anyone have experience with the Bully Dog add-on for diesel engine? Information suggests 10% increase in mileage and 15% bump in HP.
Forum Discussion
Is modifying your emission legal with a tune? All of them state "for off road use or racing only" ie not for on road public use, so why would a board like this promote illegal products and behavior, with polluting the air more with an unauthorized product, certainly not CARB, or DOT approved pollution standards.
