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.
Should have ordered a magnetic mount
The adhesive that comes with product is useless so in addition to the super high cost you need to go buy a really good 3M product to mount it properly. One would think with the high cost of this product you'd get everything you'd need. Guess not. Consumer loses again!!
Installation requires a software download. The unit is not Mac compatible. It requires a workaround remote session with a bully dog tech controlling your personal computer. Also, final setup is not self explanatory and the instructions are vague. It takes trial and error to figure out. I do get 5% better gas mileage 5.4L V8