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View Full Version : 2006 GMC Denali w/ tuned out DoD/AFM



horsehaulin
June 3rd, 2017, 08:44 AM
I already turned off the AFM/DoD but I'd like to get a few more MPG's and maybe a few more ponies out of it, is it possible to get both? I'd also like it to hold its cruise gear a little longer before downshift as it seams it always down shifts right at the top of a hill.

Hope you guys can help me out, I've been out of tuning for so long that it's disgraceful.