Yeah, they got the bits to do this, I'm sure you could figure out stacks:
The only issue I'd see though is that there is a lot of oil residue that comes out of these things from normal running. If you don't have the pipe face down, it will collect in the pipe and probably cause issues after a short while. Will also make a heck of a mess if your thinking smokestacks. You will have oil/snot all over the back of the truck!