well, heres where the drame gets drug out :::::: alot of dealers will warranty a banks equiped truck IF it is installed by banks themselves or the dealer, now. if say you do have a warranty issue and you roll in with a edge plugged in, your sitting on "oasis" a ford term that denies your warranty work due to a modded motor with a chip, tuner or programmer, and once its flashing oasis, its in every dealer computer in the country. if say you have a chip or a programmer, it would be wise to remove it before taking it to the dealer, even for an oil change. then reason comes into play. by law, ford has to prove that it was your chip or programmer that indeed caused any internal damage to your motor before they can tell you to get bent. so to avoid it, remove it and yes some programmers will leave a code in the trucks brain that can be read by fords computer. things like gears and tires are a big issue, i had my lift and tires put on and went straight to my buddys house to swap the gears, so if my tranny did blow, it will be covered because it was not the tire size that caused the tranny to blow, it was smoking the tires for a 1/4 mile but thats just hearsay. keep in mind these trucks have more then enough power to pull whatever you have, and really dont need any more balls, but like the banshee, we have to do it !! im hoping after the 6 gun ill hit around 700 hp and ill be done, not like i need it but i have it. diesel dynamics and banks helped me get to where im at so far. for starters, get an exhaust and an intake and the difference will bo so much better you may just leave it. wow, its late and i could go on forever. good night