I installed RSR race springs last year with KYB AGX. The ride is not too stiff. You might get uncomfortable driving down a roadway like the 405. All in all its streetable.
I don't recall the drop in inches, but you can check out their website. I have some pics of my car stock and with the RSR in my cardomain site,
http://www.cardomain.com/id/hikarispeed.
Are they worth the money, hard to say because I haven't tried any others or rode in other setups.
Modified by Kaizen at 11:55 AM 10/16/2004