Yeah. For the camper shell it is saying that is considered a passenger compatment therefor it has to exit out the side of the vehicle. Moze has no camper shell and it says the tailpepe discharges exhaust from the rear side or top of the passenger compatment. The key is the bed of a truck isnt a passenger compartment so as long as you have turndowns that expell the fumes away from the cab you are ok. Some inspectors may be dicks about it though. It is all up to the inspector if it is ok. Just make sure they turndown after the cab.