There's always an amazing amount of aftermarket replacement
springs available to the FC3S.  Most of them are linear
rate springs, but there are a few progressive rate springs
avaiable.
Progressive rate springs give a softer ride the majority of
the time you're driving, but do stiffen up when cornering
briskly.  This is the ideal application for those who
want good ride comfort and a firm suspension for
the occasional spirited driving sprint.  Eibach makes
a Pro-Kit application for the FC3S that has a progressive
rate.
For those who want the performance of a sports car with
little emphasis on ride comfort, linear rate springs are
the choice.  Progressive rate springs can sometimes
be pretty unsettling for performance driving due to their
dual-rate nature, in this case linear rate spring are what
you're looking for.  There are literally dozens of
choices for linear rate springs, but some of the more
popular choices for the FC3S are Suspension Techniques,
Racing Beat, and Tokico.
For those looking for something a little more aggressive
than your normal, everyday aftermarket drop-in appplication,
K2RD makes a coilover kit for the FC3S.  This
kit utilizes Eibach ERS 2.5" linear "race" springs on custom,
adjustable, billet aluminum collars and perches that let
you adjust ride height!  The spring rates can be chosen
from an almost infinite combination of choices.
http://www.k2rd.com/
Questions?  Comments?  Send email to: 
reted@fc3spro.com
10/05/2003