What kind of improvements did you guys notice with a tune from BB on an all stock 6.2L with 8 speed? Looking real hard at a 2015 Yukon Denali XL to fit the growing family.
Yes. I have one of your tunes on my 5.3 but it's been so long, and truck is far from stock. Planning on just a simple K&N and cat back exhaust. This will be my main family hauler. With the 8 speed, I'm just curious to see what it all does, and what people have to say. Haven't been able to find much on tunes with the 6.2 8 speed. I have the AutoCal as well.Hello, are you wondering what gains we would see on that vehicle, with our tune?