it was not too loud for me.
i actually quite liked it, especially over 3000rpm!
i just wanted to try different exahust and i already have it.
ok, updates...
i was on my way to shop to take the exhaust off the car to change with FI exhaust.
i stopped by a one place for three min and came out to head over to shop.
car won't start.
searched real quick and it seems it's a known problem with 09~10 Z's.
Intelligent Key System Warning Light...
So I had the car towed to dealership and god knows how long it would take them to fix it...
my car was not able to reach the shop by one stop so the exhaust is not off yet.
once it's out of dealership, i'm taking her straight to shop even before coming back home.
will post again once it's available.