Thanks to "OnetallGMC96" for the deal. I have an lly crew that I mainly use for work and as a winter vehicle. I was a little dissapointed at how the truck pulls with close to 10,000 in the rear so I decided to give it some more balls with buying edge/attitude. Now i don't want the extra power to damage anything so what level should I keep it at? And will I notice any increase in mpg unloaded? I drive like pretty slow (speed limit) and try to keep it under 2000 rpm's. My average 50/50 a week is between 17-18.5 mpg.

And I noticed Edge doesn't like cold weather?

http://www.edgeproducts.com/chevy_faq.html

discusses power level and damage, mileage, warrantee impact, etc.

http://www.edgeproducts.com/instructions.html

discusses engine temperature requirements before edge kicks in

lots of stuff available via search of this site too.

Put it on lev. 1 or 2 for the main power setting and 1-5 for the low boost fueling 1 being lowest amount and 5 being most responsive and smokeyest (is that even a word?).

plug and play...you will be smiling everytime you start your truck