Rocket exhaust from diesel regen

20K miles or so on our 2015.5 duramax while towing a 30ft TT and or a 15ft cargo trailer and Ihaven't noticed any damage from regen.

Did those who had problems have the stock tip on or an aftermarket? The stock tip is "double insulated and designed to pull in outside air near the exhaust to reduce temps. Personally I have been standing very close to the exhaust when the truck was parked and in regen and yes, it get's hotter than normal but not hot enough to do any damage.

"If you have a 5th Wheel and Short Bed (now called Standard)"

Still a "SHORT" bed.

Cut off the last section and have a replacement pc made with the outlet pointed to where you want the hot air to go.

Not a lot, but I have seen several postings on RV forums from GM owners saying the heat from the GM exhaust pointing directly at the curb side front corner of the RV causing heat damage. Hard to say just how much of a problem it is.

If you have a 5th Wheel and Short Bed (now called Standard) and the exhaust doesn't have enough angle to get it away from the front corner, yes you can have some issues. Have seen some report on the Redwood Forum of issues.

If you google it you will see a few owners have had issues with this but the majority of posters haven’t. I didn’t realize this could be a problem.