I have an 02-s with tein h tech springs. Although my camber is only off spec in the rear (according to my last alignment), all 4 tires are completely bald on the insides. I have had the tires about 6 months, so I figure I should get a camber kit front and back. Anyway, I found some cheap kits on ebay from $100-$140. Is there much difference in quality?

I have the same setup, my fronts were "within factory spec" for camber, so did not need the front camber kit, but the rears were out negative 2. I went with the Ingalls, they are two adjustable lower links, a better design than the SPC upper middle link with a ball joint.

I suspect that your front tires are bald because it had "TOE" problems and it wasn't corrected. This is worse than having bad camber readings. Read my article response here:

https://acurazine.com/forums/showthread.php?t=118794

Anymore questions post here again.