I must be a little unusual because I am satisfied with the power of my Duramax but would like to know if anyone has done a serious study of fuel economy with chipped engines.

Since most people who put chips in probably tend to drive faster and a little heavier on the acceleration, I am not sure fuel economy has been studied.

If someone has driven 70 or less and examine fuel economy with their chips, I would very much like to know what your results have been.

Thank you,