[DieselDave]

I have a Hypertech programmer for an '02 Chevy Silverado/Tahoe/Surburban. It will work on the 4.3/4.8/5.3/6.0/8.1 gasoline engines. It is like new, in the box. I took the program off my last truck when I bought the the '03 DMax. I am ask $300.00

 

[chevmeister]

do you know if it will work on 2003 trailblazer with 5.3??

 

[Max Power]

chevmeiseter. I went to hypertech's site and it looks like it won't work. Different part #'s for 02 and 03.