what cc plates do you recomend ive been looking around and dont know a whole lot about them. I have eibach sportline springs in the car i had it aligned after the install but should i buy some plates? I just recently noticed the tire cupping slightly on the outside
Scalloping generally indicates worn suspension components, not an alignment issue.
Lowering or cars increases negative camber, and if lowered more than 1-1/2" it can be increased enough that the stock CC plates will not allow sufficient adjustment to get the camber back to the stock spec of -0.50° ± 0.75° (a range of +0.25° to -1.25°). Too much (-1.5° or more) negative camber will cause the front tires to wear on the inside, not scallop just wear. It also (up to -3.5°) improves handling, though at the price of faster tire wear.
When you had your front-end aligned what were the final specs? Did they make any comments about camber adjustment?
FWIW I run -1.75° camber because I like the improved handing, tire wear be dammed...