Originally Posted by 08stroker250
I don't see how someone could make less power with better air flow. He probably lost power because he didn't reload his tune. The ECM on these trucks have adaptive learning causing the power to decrease overtime. If you don't reload the tune right before the dyno run the numbers won't be at full potential. I highly doubt your buddy lost power by increasing airflow....that makes no sense to me
So would the standard disconnection of the batteries for 20 minutes clear this adaptive learning like on a Ford car, or is it permenantly stored until the computer is reflashed/dtc cleared?
Could explain why I have LOST power from my cat back and S&B!