I am looking for some sensible horsepower. I am not looking to race my truck or pull it or anything like that. I would like a little more grunt, more mpg, and not tear up the truck because I am known to keep them a long time. The question is, am I better to leave the truck alone or try something? I know the Smarty and the JR seems to be the way every one is leaning. My question is, my truck had a TSB performed on it 2 years ago. Reading the Madds web site, they say they have the latest program in the tunner and when you go back to stock the tunner loads this new program. So basically if I understand this correctly, I will never have the program I have now? Will a Banks allow this? Other ideas? Is this important? I need some advice!