I think I might know a guy in Phoenix that can remap motorcycles, too. I've been told that he can raise power and fuel efficiency 20%. I think it works :)

The mapping I'm talking about is mostly against the law here due to tail pipe emissions. You have to declare your vehicle to be a 'custom' unit and maybe live in a county that doesn't have an emission test requirement. Like say, maybe, Yuma County.

For motorcycles there is an option. You can have a variable chip installed and custom map your bike with your laptop. You can go like stink 364 days of the year and pass emissions on the other. I'm guessing that would be an option on 4 wheeled vehicles, too.

Have fun with it. Bigger, faster, stronger is always a good thing.