OMG ..
I am so tempted to try this!!! I wonder if my titanium tips from my Hi power will fit the tips here. If so, I may trade/sell my hi power for this (after hearing more exhaust videos or real life exhaust tone)
BTW, here's a clip I posted 3 months ago
in my HKS Hi Power exhaust thread
HKS is actually working on a new exhaust for the 370Z. It's called the HKS SSM (Super Sound Master)
Click on the picture to launch video