Originally Posted by f1100turbo
The duramax has tow haul mode and downshifts at set shift points.
As well as upshifts are later.
The duramax also has a variable vane turbo that can be manipulated as a sweet engine brake.
And I don't know so don't start with me, but is the duramax an automatic? Tha up shifts / downshifts changes are what my Ram Tow/Haul mode does. The EB on myRam is automatic and kicks in when you let up on the pedal.
I guess my question is - do manual transmissions have these features?