Coming from a 1999 325 hp injectors edge bd exhaust brake to 2022 3500 ho aisin. Went for a mountain drive today about 50 miles steep hills up and down curves Empty truck. It still amazes me how this power train works. Pretty seamless shifting gearing up and down lots of power and how the exhaust brake works tow /haul mode. It’s like driving a huge sports car . Very fun to drive . I’m still loving it