07 tahoe programming

Has anybody used the superchips 2815 on their 2007 tahoe. What setting do you get the best mpg. Mine is lifted with 35's.

It is an "ok" handheld but will not be optimal.

I didn't see any mpg improvements with the 2815, even with 93 octane. Check the 8th digit of your VIN. It determines which engine you have. If it's a 0, you only get hp improvements from the 93 octane tune, nothing from the others. And I found the mpg to be the same.

Superchips website forum has other digits on there too. Apparetnly there are 6-7 different 5.3l's from 07.