The EGR problem is there in all 6.0's, but when you add a tuner it escalates the problem. A tuner adds more fuel, more fuel means more exhaust gases, more exhaust gases means more exhaust is recirculated through the EGR valve and cooler and back into the cylinders, which puts more stress on the cooler, radiator, valves, etc.
An EGR delete kit is available, BUT removing how emissions equipment from an emissions engine is illegal. Most of the time no one would say anything to you, but the one time you get caught......
325 Horsepower and 560 ft. lbs of torque factory specs.