#9460, "RE: coil overs vs. springs" In response to In response to 2
The thing about coilovers that your used to seeing is that they are not real coilovers. What you're used to thinking about is the "adjustable spring height" part of a coilover set.
A real coilover system is shocks and springs built into one assembly, and these things can cost over 1000. (if you do a search, i remember doing a post about all the companies that made real coilovers for our cars... "True Coilover Bananza!" I think was my title). Cheapest I found was 800.
As you might guess, since those "fake" coilovers are just the spring part of the real setup, they tend not to be as reliable in racing conditions (in normal daily driving, they are fine). Because of the way they mount onto the shocks that you put them on, they tend to "clunk" or give way during a hard turn.
Upgraded spring and shocks will give you a stiffer more controlled ride... the only draw back is you lose the adjustability of coilovers.