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programmer for 2012 GMC Sierra 5.3L


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I just bought an Intune for my 2012 GMC Sierra 5.3l and so far I love it. I have not gotten into any advanced programming  https://mechanicfaq.com/programmer-for-gmc-sierra-1500/ yet but I did have a few questions. First, a little about my setup.

5.3L V8, 6 Speed Automatic
Flowmaster 40 Series Exhaust
K&N 63 Series Cold Air Intake

After installing the exhaust the AFM switching was driving me nuts so I decided to go with the Intune to shut it off. I prefer to run 93 octane but noticed that there was no option for that tune as well as none for my CAI. Is this something specific to my vehicle?

As far as transmission tuning, I put the Modified Stock tune on and not notice quite a jolt shifting 1-2 and 2-3 at WOT. Is there anything I can do to smooth out the shifting a bit? I put it back to stock to test it out and it was smooth as butter. I'm new programmers so I am not really sure what setting do what in the transmission.

Any help you can provide will be much appreciated.

Thanks

Edited by Xiolyn
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