Is there anone here on the site that is in the area of southern Kansas or northern Oklahoma that can do a custom tune on a 2003 Yukon with a 6.0L???

I am wanting to get better milage and more power if possible.


This is a stock rig, no add on's.

If anyone can help me out I would really appreciate it.

 

did you ever find anyone? I'm in central kansas and unsure if I should just go with a handheld or not, mines a DD so waiting for a mail in isn't feasible.

 

D&G Dyno in Hennessey. 405 853 5510