How many credits do I need?

[waters17]

I'm currently shopping around for tuning options, and HPTuners seems to be pretty popular, but I am having a difficult time understanding how credits work.

I saw a guy tuning on youtube and he mentioned something about the transmission and other modules also requiring credits.

I have a 2001 Silverado 2500HD. (LQ4/4l80e) I was able to locate it under the vehicles section on the website.

On the HPTuners website it says 2 credits, but then I hover over the little "i" icon and it says 6 credits.
https://lh3.googleusercontent.com/pw...wUo9cuAx=w1200

I didn't really understand the phone minutes analogy on the credit explanation page.

I just want to be able pay my money so I can tune my truck indefinitely and be on my way.

How many credits do I need?

[gtstorey]

The 6 credits will be for if you want to tune an unlimited number of 2001 Silverado's, not just your single vehicle. Just the one vehicle is 2 credits.

[waters17]

Thank you!