when my strut seized and there were no OEM options, I went with Tein Flex Z coilovers for height and comfort adjustability. My car is currently at 1.5" below stock. When it was lowered to 2.5" below stock, my rear alignment was off and it was recommended I get a camber/upper control arm kit and toe arms. My solution was to go up an inch and she was back withing alignment specs. I am not sure whether your reference to "suspension" is to shock/struts, upper control arms (I have seen a number of different brands), lower control arms (Dorman are available) or something else