Random question- JBA mufflers

Curious if anyone here might know- does JBA only make chambered mufflers?

IIRC, yes they only make chambered mufflers..

When I got my car from Carmax back in 09 it had a set of JBA's on it. I can't say anything bad about them. They sound great and I have had zero issues with them in the last 8 years.

The actual reason I was asking was because I'm most likely selling my ranger this year and looking pretty hard at getting a 5.0 F150. Of course, that in mind I'm already looking at exhaust, and JBA has a pretty nice system but I can't find any sound clips of it so I was curious what muffler it had on it.