This is how the CSVT exhaust is setup, from the heads down.
First, right off the exhaust collectors (headers)are two cats, one off each side of the engine, then those collect into the Y-pipe, and after that they connect to the main cat back a little further to the resonater, and finally splitting into two 2" pipes that lead to two exhaust silencers. they are so small that they're not really mufflers.