348 348 exhaust??

I have a Mondial T with obviously the same engine as the 348. I replaced the Mondial muffler with a Tubi. Just bought a 348 and wondering why they have 2 mufflers?

I am going to buy a Tubi for it as well………will that top muffler remain in place when I replace the bottom one with the Tubi or do they both go?

Thank you

 

Thanks…….so no extra pipes or anything needed? Just remove both of those and replace with single muffler?

 

Thanks