The crazy thing is like every other JoeZ exhaust owner does dyno testing on their car after installing each individual upgrade and posts on this forum or CL. This fact, the quality and thought put into the system, and the fact that VIP is in my area and I have come to find out that their customer service is unrivaled convinced me that the JoeZ was the exhaust that I wanted. The system is a serious, high dollar exhaust. You don't even see quality like this from Dinan, it really is top notch. No expense was spared, there is not one thing hokey or cheesy on the whole system. And for $1600, the price point is quite reasonable for what you are getting. The fit and finish is amazing. And the sound... these cars really should have come with this system from the factory. The car now sounds like it should always have sounded. Not annoying, almost subtle while driving in a civilized manner, but when the throttle is pinned to the floor and the big V8 begins inhaling massive quantities of oxygen, all hell breaks loose. +1 for JoeZ, and a big +1 for VIP. Oh, and while you're at it, pick up the JoeZ intake pipe for $140, money well spent.