Thats pretty normal for our cars. You can pick up a set of rear heightening springs. Some use springs from another type of car. Cant think of it right off though what it is. Its right there in my mind just cant get it to surface. SOmeone else will prob post an be able to tell you. If your planning to lower in the future though you might as well not worry about it an just go for the lower dont bother fixing the little bit of sag.