I am planning on buying some BC Racing coilovers because I have heard a lot of good reviews on these and I like the fact that you can adjust the Dampening settings. Also I am NOT buying these just to "lay frame". I would like to get better handling and less Understeer from the TL.

The standard spring rates that they come with are 12kg front 6kg rear. I am also planning on putting a RSB on in the future. However, I am a 6 speed and therefore have the stock FSB on. This being said I am considering 13kg for the front and 8kg for the rear.

I am sure it would help to know the factory spring rates, which I could not locate. If anyone could provide any input that would be great!