Why doesn't the Z exhaust note :purrrr: like the G37

wdkwang

to those that agree with me, thanks for reassuring me that i'm not going crazy. if you listen to any number of aftermarket exhausts (ex: youtube stillen for the g37 and 370), you can tell there is a "pulse" sound, as mattp put it, to the g37 that is simply not there on the z's.
this is most apparently to me when i'm at a local z meet, where there is a range of different exhaust setups, and listening to other z's showing up and leaving. none of them like a g or fx

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