2005 durango hemi towing

[dirtjunky400]

I have a 2005 dodge durango hemi which I use to pull a 7000 pound travel trailer and I want to know which was the best tune to use and which transmission tune to use or is there a good custom tune out there for this.

[mikel]

Best tune to use is the one that matches the octane level you run in your truck.

Thanks