2017 Duramax Dyno Numbers
Looks like the GM guys are sandbagging the advertised HP and Torque numbers... The new Duramax is going to be a real stump puller. Link
Forum Discussion
All manufacturers understate the numbers somewhat. There are manufacturing differences so not all the engines will put out the same numbers. If someone tests an engine and it does not put out the advertised numbers they could sue for false advertising. So there is some understatement to cover the differences.
