There has been a few questions as to the widened wheels I have put on the car. I got these from Andy at ADM Performance. You can read more about it here:
http://www.camaro5.com/forums/showthread.php?t=45729. The spacers are 1" wide and are HUB CENTRIC both inside and outside. If you get a spacer from someone other than Andy, make sure it is a hub centric spacer to locate the wheel properly. You can reach Andy at: 214-228-8782. He has been a great guy to deal with.