Had the same problem. EGR valve was all full of soot, caused the truck to go into limp mode. For some reason they replaced all the injectors as well. Happened with only 14,000 miles on a 2016.
I'll post a better pic of the exhaust in my garage. Yes emissions intact. Have very strict diesel laws and yearly smog checks on light diesels here in Vegas.
Hi sir have heard of the law suit. And what do you think will happened. Would they by back this trucks . My truck at the dealership getting new motor. https://youtu.be/ZR-BwGoc3R8