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 it an ISL? I'd call Mark Chappell at tst products.com. He was a Cummins engineer for 32 years. I have their PMCR on my 03 and I gained nearly 2 mpg towing by fine tuning the parameters as I drove down the road. It also passes emissions with 1/10 the allowable limit. Craig
