Not worth the Money
The instructions don't tell you to, but when I called Bullydog with a pre-installation question, they told me that I need a battery charger or jumper cables hooked to another running vehicle to install because of the high risk of battery voltage fluctuation. It took an hour to install and I haven't seen any improvement to my truck; no noticed horsepower increase (haven't dyno tested it) and no fuel mpg increase.
Don't expect to much
21 days and I'm not impressed.I called there tech line,and although helpful,they could not solve the problem with night mode.The touch keys are very sensitive and the control is sluggish.The possible "display options/possibilities" are nice,but overall functionality is poor,especially in 2017.its options are to complicated.To "upload/update" it is somewhat confusing.Once on the site I was hesitant if I was installing the right things.I would pass/try something different if I had the chance to.