SCT
heres there link but check out some of our supporting vendors on this site like Raul@ stealth, DJ's diesel or Discount Power Parts they can all give you info on the SCT it will give you a more power and better mileage or you could always go and make you r truck a veggie stroke and run it on veg oil you can check out more about that in here
http://www.powerstroke.org/forum/bio...s-supplements/