If you start thinking about the tuners just buy the Smarty Jr. and be done with it. That's what I did for my 5.9 two years ago and have no complaints. I just leave mine on the tow mode (middle setting)and the throttle response is a lot better. When I put it back to the stock setting it feels like a slug. The Smarty Jr. is considered a very mild tuner and a "safe" box made to be used with stock trucks.
Nice looking rig by the way! I am planning on driving my 2006 until the wheels fall off. I picked up a set of the Cabelas floor mats (I think they are the Trail Gear or Trail Gear II) when I first got the truck. They cover most of the carpet and make one for the back seat area too. They are still going strong and save the carpet from muddy boots and spilled everything from my daughter. Highly recommend them.
Andy
