So Ive been thinking about this for a while. I want to get one of those performance chips for my truck BUT, not for its intended purpose. From what I understand those chips do not do much for our v6's, but I have a friend who has a V8 and has a chip. From what I'm told it has an "economical" setting, and he gets 17mpg on his v8. What if I chipped my truck for the sole purpose of using it on economic mode and saving gas? What are the chances of that working?