The AP exhaust was great. It has a beautiful deep growl under acceleration and is well behaved while cruising. I did notice a slight drone around 2600-2900 RPM while cruising in 6th gear. I would have no problem taking this car on a cross country trip with this exhaust.
I made two video clips. One was in the car while accelerating from a stop to about 80mph. I had the windows up and AC, radio off. The other one was camera outside the car and starting the Z and revving it. Unfortunately the second video got erased when I downloaded it. The only one I have right now is from inside the car. I will make another one and get it posted ASAP. Let me know if you guys would like any others ones and I can make those as well.