So I have a 2016 2500 with the 6 speed and I drive with my exhaust brake on at all times. The truck has 71k miles and is deleted and tuned with ez lynk. Im unsure where the tunes are from because I bought the truck from a dealer with the tuner in the glove box and I was really pleased with how it ran so I saw no need to change anything. I’ve done my research but most write ups I can find are people with automatics and the TC lock up issue. So I can hear my exhaust brake engage but it doesn’t slow the truck like it used to. Hardly at all honestly. Up until today the EB has worked flawlessly. Every once in a while it will work like normal but it’s rare. Also the engagement is the same whether it’s in full exhaust brake mode or automatic. The turbo spools flawlessly, has tons of power and no more black smoke than usual. I imagine there could be something with carbon build up that needs to be cleaned or something along those lines so if that is the case where should I start? This is my first 6.7 so I’m fairly green to these things and any input would be greatly appreciated.