Are you sure the tires aren't rubbing the inner fender now? That's all I can really think of that would occur when adding the camber kit. I have 18's/Sportlines and can't fit a finger between the tire and lip of the quarter panel, and that's without a camber kit and about 2-3 degrees negative camber. Also the only reason I haven't put my camber kit on yet, probably going to have to roll the lip