I've seen lots of diesel's with stacks around here. Most of them involve two stacks coming up from the rear of the bed. I've seen at least 1 where the bed was moved back far enough for the stacks to be between the bed and cab. I saw this one this morning, it was a bit different.

Yep, one giant exhaust pipe that I'm guessing is at least 12" in diameter. I think he needs 2 more longitudinally arranged.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten