i bought it from a performance specialties store. it did not come with any tunes just came with the info cd which is a little hard to understand. ill try contacting customer support services for that store and see if they can help me a little. but i am also just looking for someone to help me set up my own tune or show me somewhere i can download tunes from but i dont want anything that my truck cant handle or if you could please point me in the direction of someone who can help me. thanks
You really are on the hook for a tune for your rig from one of the tuning vendors if you want something specific. The folks at EFI support the product (hardware and software)... how it is used to modify the tuning, they do not tell you how to tune your truck.
A place to start on your own would be here:
http://www.duramaxdiesels.com/forum/showthread.php?t=35
Be careful... EFI works great, but you can really break things fast and bad if you do not know what you are doing....I say that, and have never written my own tune, I have always gotten my tuning from someone else.
Do be careful who you let tune your truck, not everyone selling tunes REALLY know what they are doing. I would say you talk to the tuner on the phone, and do a LOT of research to make sure the claims are valid, ask for references from the tuner. Getting a "cheap" tune can cost a lot of $$$$ in hard parts if done incorrectly.
There are reputable vendors on this site.