So one of my main pet peeves I have had since getting the car is the noise level. I had kinda gotten used to it until I rode with this really hot chick who had one and her's was so quiet. I drove all the way to Texas from Florida and didn't realize until I got here how bad the tires were. Due to lowering it without other suspension components, the camber is to negative, especially in the back. The inside of the rear tires were totally bald and down to the wire. So I had them swapped with some new rubber and boy what a difference. It is so much quieter I can't believe it. Let that be a lesson to everyone who is putting coilovers on the car to fork over the extra money for the other stuff too.:

 

Yup... gotta adjust the camber and toe angles so that your tires wear more evenly.

If anyone needs to get the SPC front and rear camber kits, I have a set that I no longer need (never been installed/used), and am willing to sell it for $600.

https://my350z.com/forum/showthread.php?t=358876