I'll update this thread when I can.
I'm from Australia & we have a dedicated Z community over here.
Here's a pic of my Z at a car meet earlier this year.
I installed the Litespeed Racing Titanium Exhaust last week.
Here's a video I made to show the difference at idle and with some revs.
I might also add that it sounds more exotic on the road.
There's a noticeable increase in power.
All it needs now is a tune.
Nissan 370Z Litespeed Racing Titanium Exhaust - YouTube