It looks like a camco gen-turi vent tube. You’re supposed to stack more pieces on there though. It takes the exhaust from the generator and puts it up higher over the vehicle so you aren’t breathing it. They are used in congested places, like at some race tracks where coach’s are all in tight and everyone runs a generator.
The extension is a big pipe that is about 5 feet above your roof. I’ve seen hundreds of RVs packed side by side at an airport all running their genies.
Probably exhaust for a generator
Gen turi generator exhaust stack for close quarters camping. Routs generator exhaust up above the roof of rv. Looks like it’s missing 2 sections. Mine is 3 3’ pieces and an elbow that connects to generator
That’s to add 7hp for windy hills over the pass, they would have gotten 10 but forgot the stickers.
I can’t help you with the pipe, but that sure doesn’t look like a class B to me.
Looks like a class a or c, unlikely a class b.
Source: What is this attached to the exhaust pipe of this Class B?
