Those aren't coilovers, they're sleeves. Coilovers are exactly that. Coils OVER struts, both made to work in perfect conjunction with each other, with matching spring and dampening rates. You just bought a set of adjustable lowering springs. They ride shitty because they are shitty. I have to agree with Hvyman on this one. (dear God, did i just say that?) Certain things i can understand skimping on. Timers, which effect your ignition and although relatively simple should not be taken lightly, and springs (ya' know, the things that keep you from turning into a Streetshark and driving through the concrete) shouldn't be skimped on. BTW if you haven't replaced your stock struts they're probably 20 yrs old and on their way out anyways, and they're most likely going to blow, especially if you're running those monstrosities with what i guarentee is around a 2k spring rate. lol