Yes. 2002 GMC Duramax / Allison bought new.
I was buying a new pickup every five years since my first new car a 1972 Suburban with the 402 big block.
Duramax stock only 520 foot pounds of torque and I already tow my TT and my boat too fast.
I have owned 3 Porsches and own a Mercedes sedan.
I would never consider this "TUNER" mentality in a pickup for towing use.
The other factors such as towed load uphill and cornering with a trailer dictate that 520" is just fine.
Right after I got it I put a fancy stereo and amp and speakers in it, a fiberglass SnugTop canopy, running boards, brake controller, fancy smancy Weld Polished Aluminum wheels, and LT 265 load range E Michelins on it. Also a nifty graphic on the side of this Pewter colored Hangar Queen.
When I sell it everybody wants those features for free.
They're gonna have to wait. I expect another trouble free 5 years from the Duramax Allison combo. Besides, GM shuts off the fuel right around 100 mph .
Porsche does 180 , Mercedes does 135 electronically limited and they're made for the autobahn. The HD 2500 is not so aerodynamic. It still cruises nice at 80 in the high desert not towing.