My car is lowered on Steeda sport springs. I have Steeda CC plates and bump steer kit. I run ~3.5* of caster and ~1.4* of camber. I set the bump steer kit up by matching the angle of the control arms to the angle of the tie rods vs. the stock measurements. I know that's not the 100% proper way to do it, but my car drives great. It has almost no bump steer or tram railing. Those 2 parts made a huge difference on how the car drives vs. just being lowered with a alignment.