I think what he was saying is that even with the best chip you will barley be able to squeeze 800 ft. lb of torque out of any of the big 3 diesels, the stock ratings from Toyota are pretty good ( if that motor is the one they stick with, if they even produce this truck) and not far behind the big 3.
With all the problems ford is having with powerstroke ( both with the 6.0 and with the fact that they may not be using a powerstroke anylonger) and the Isuzu...whoops i mean the Chevy having its share of issues, if Toyota could produce a reliable , which is what they are know for, diesel with comparable hp and torque (even a little less) and make sure it was strong enough for use as a 1 ton, i think a lot of people would jump at it. As far as the programmers and tuning go, i am sure that if Toyota comes out with something the aftermarket will not be far behind!
just my 
thats why i stated that toyota needs to be competative. yes the aftermarket will tinker with the motor as they do with all the others i'd be shocked and dissapointed if they didnt. competition is a great thing, without it there would be no or minimal upgrades/changes.
with the best chip barely able to squeeze out 800ft/lbs of torque might wanna double check that. the lower end chips make about 60hp and 150ft/lbs of torque for any of the big 3 (and i agree the 6.0L powerstroke is a boat anchor). base line is 640ft/lbs of torque roughly at the wheels so with a lower end chip that puts the engine as cranking out 790ft/lbs of torque. the banks 6 gun does not require any other upgrades to protect the vehicle drivetrain and quotes making 330ft/lbs of torque over stock with no other upgrades.
the duramax issues have basicly been eliminated, like any other motor when it 1st came out had injector problems and an overheating issue. now, standard repairs on the duramax for 150,000 miles are glow plugs, filters, and oil (not talking about anything but the motor). the 6.0 repair list for the 1st 25,000 miles is huge and costly, the 5.9L cummins is like the 03+duramax motors, simple and inexpensive with the exception of glow plugs (cummins uses an intake air heater).
with the statement that chips are requireing the motors to be rebuilt sooner than stock, like with any other mod it depends on how its driven. i could take the 327 in my blazer in stock form and kill it in a few thousand miles (or any motor/vehicle for that matter), or take care of it and have it last for hundreds of thousands of miles. what kills any diesel quickly and what most of the lower end chips dont cover is the exhaust gas temperatures. get too hot for more than a certain amount of time (temp and time varies with each motor) then you will kill the motor very quickly and require a rebuild.
