Yep! My head must have been in the sand for quite a while. I didn't have the faintest idea this was a thing beyond pickups at the strip. TD class has no limits on weight, wheelbase, or tire sizes. Nor can I see any limits on engines until pro mod/stock categories. TD is Cracking the quarter at 218mph! Look at the snails and snakes convention! Honestly, I'm finding it rather exciting to watch with the revving and jockeying at the line to spin the turbos and get the boost up before launch.
This truck has 3 turbos (Look closely and you see it's a compound setup, two in front blowing into the one on the engine than blowing into the engine) can make 130psi - and does it in 9's. at 145mph. It's supposedly the fastest 6.7 in the world.