Yup, if they get the tuning right, the exhaust has the potential to sound very good. I think that's Nissan's goal.The new exhaust design appears to be some kind of helmholtz resonater / sound canceling design. The length of the "H" connection between the two exhaust ports is purposeful to eliminate unwanted frequencies in a certain band. LOTS of thoughts go into that and this exhaust looks much lighter than prior models.
Interesting yet i see way to many similarities between this and the Z34 version. Nothing wrong with just making incremental improvements to a design that made a LOT of us happy over the year.
BTW the new Z is also called "Z34" for some damn reason