Don't buy one.....
on my programmer III the flash memory went bad so i called them to use their "lifetime Warranty"....that only works if you have your original reciept, well i don't have mine. So now im stuck with hypertechs tune on my car untill i pay the dealer an arm and leg to reflash my ecu back to stock then i am able to use the tuner of my choice. Hypertech won't even help you get rid of thier tune if you don't have a reciept...... all of a sudden its your problem and who cares that you bought the overpriced tuner.

 

seems like i saw a post where somebody paid a dealer like $100 to have that done