assuming you are not looking for stock springs? Are you going for looks or performance? I've got some Prodrives I could maybe part with but they do not lower the car much at all.
The Prodrives I have are designed for '05-'07 STi. Seriously, on my car they dropped like 1/4" in front, and nothing in the rear. I like the way they feel a lot, but if you want a drop you can actually see these are not the springs you want. I would look into the JDM pinks, or something from RCE/(gtworx.com)
Ive got a set of rebuilt BC racing inverted coilovers for sale if your interested. $700 only used parts are the springs and lower perches.