TOPIC: Grooving cars as a Certified Gadgetman

I just grooved a GMC Yukon, Denali last week. The power was amazing and the owner said he went from 15 mpg on the highway to 21 mpg. As it goes he's pretty happy. So is his wife. They have two more vehicles to groove.

Great job Greg! What year Denali and spec like miles on it and any pictures? Also did you do pcv mod or ecu re-learn? Keep up the grooves!

Great job Greg! Welcome.
Congratulations on your License, and it seems like your shining bright as a Gadgetman. I know your enjoying applying this amazing technology with awesome results! I'm excited to see all that you will do here in Gadgetman Land.
I had similiar results/story i posted here with a 2008 6.0L Chevy suburban 4x4
Lifetime average as 14.4mpg, now over 17.
Highway went up to 21+

Happy Grooving!
Michael