2007 Chevrolet Silverado

[Jameson]

After making sure I have the latest up download. My MPG went from 14 to 11 on the freeway. The truck also had notably less power. The MPH was still off. I received and e-mail with what I thought was the right down load. Could I have gotten the wrong one?

[mikel]

This is very odd.
I have not heard of any similar situations.
Make sure the Predator is on the latest revision and be sure you installed the appropriate tune for the octane level you are running in the truck.

Thanks