VTApache - Uh... NO... not like that (although that's very... how shall I say... interesting). More like this.
http://www.blackclouddiesel.com/Stacks/stackpics.htm Longbox - Yes the little red express. Thanks for the link. I see it had it's stack's going up through the step of the stepside bed. It does have a shroud.
Looks like the ones in the back of the truck beds would make the bed somewhat useless, or at least less usefull.
Some of them around here are not all that loud (not like a V8 with dual glass packs loud). I still wonder if they have a muffler in the stack or if the turbo muffles the noise sufficiently, or what.