On my first 6.7 Cummins, had 400k on a 5.9 and I'm confused by this engine. It feels like it's weaker then the 5.9 even thought it has greater horsepower and torque numbers. I think I need to change the programming but first I want to take the EGR, DPF and loss tank off of it and open up the exhaust so it sounds like a truck. Has anyone done this with a 2014. Everything I find is for 2012 or older. Anyone have suggestions or experience to share?