I had a 2010 dually, deleted. It would tow anything but like said its just slow. You put the hammer down and wait for something to happy but it doesn't. I just drove a new 2013 dually and wasn't impressed with that either. My 2012 crew cab hemi with 35s would give a new diesel a beating on the street from red light to red light stock. I was waiting for the 6.4 hemi to come out in the 2500s but they only gave those 410hp 429lbft. My hemi with 35s, diablo tune, muffler cut off and intake went 15.2. My 07 5.9 with edge on 100, same 35s, intake and exhaust went 15.0 I was surprised with my hemi.