That truck has 767hp and 1000lbs of torque and if you skip to the end it looks completely stop it even sounds stock. Its not a diesel but it is twin turbo with some crazy crate motor. He even keeps up with that 600rr.
diesels can be a surprise. I can say a 550 cat bobtailing is faster than an oem 90hp sube...and the old sube isn't even slow. Of course skipping every other gear of an 18 speed has quite a luanch to look at.