Need Lowering Help not sure what to do

With the stock 15x7's, you should be able to go pretty low, such as the eibach sportlines or maxspeed yellows. They both provide 1.5-2" drop. Ive read good and bad of both of those brands. But the maxspeeds are lots cheaper, so less risk I suppose. Just be sure to replace the spring isolators while your in there, whether you need cc plates or bump steer kit you can wait and see after you install em. Good luck.