I have a Diablo Sport hand held flash programmer for sale too! It will fit any 2003 GM series vehicle (truck or suv) with a V8. I used it on my Silverado SS and it worked great. Here is a link to Diablo's website to this specific product for more info:
http://www.diablosport.com/index.php?modul...play&pid=66
Contact me at
[email protected] for questions or information. Serious inquires only please.