upgradced wheels and tires will only present a challenge if the offsets are not correct. Dropping your Camaro as low as you want will require coil overs. A 2 inch drop is a big drop! But looks great!
Here is a recoent thread on showing off the Pedders Xas with 22s
http://www.camaro5.com/forums/showthread.php?t=68512
Thanks
mike
dms