What’s the best way to make a Duramax faster? Put it in a car instead of a truck of course! If you want all the dirty details on how this guy was able to squeeze a Duramax in this Grand National, you will want to check out this months issue of Diesel Power. For us here at Parley’s Diesel Performance, we had to see it to believe it. When we saw it on the internet a couple months ago, we thought it was a joke; but sure enough its legit, and one of the cleanest conversions around. We tip our hats to David Morad for taking Duramax Performance to a whole new level.