First, I have never tuned an EcoBoost. With that said, a friend just picked up a dead stock 2016 Mustang EcoBoost. She wants better throttle response, firmer shift points (auto obviously), increased HP and possible better MPG. For those of you who have worked on this model, what are the reasonable expectations for tuning a stock engine combo? Can you expect some decent performance gains with nothing more than a modified tune?
If yes, does anyone have a safe modded calibration for a stock tune? If not, where should I spend my time? Thanks.