I searched, but couldnt find my answer.

So, I have 2 2016 trucks, 1 a 2500 with the 68RFE tranny and the other a 3500 with the Aisin.

I want to shift on the fly with the 2500 and just want to delete and keep stock on the 3500.

Would I need two separate tunes?

How does having 2 VINS actually work?

I am currently stuck between RaceMe and MM3, but heavily leaning MM3.

Also, I am straight piping 5" on the 2500 and only 4" on the 3500.

Just confused on the 2 VIN and tune options.


Thanks