This custom spring rate option is only sold with BC Racing coilovers. It is not for sale individually.
BC Racing will install custom rate springs on your coilovers in place of the standard springs. You will not receive the standard springs.
The standard springs that come on BC Racing or Fortune Auto Coilovers are suited for a majority of customers but sometimes you just need custom spring rates to achieve the ideal stance or feel that you're going for. This custom spring rate option allows you to spec your spring rate up to 20k. If you are interested in spring rates higher than 20k, please check out the Swift Spring Upgrade.
Can specify springs up to 20k For spring rates stiffer than 20k you must order the Swift Spring Upgrade instead BC Racing will construct your coilovers with these custom spring rates in place of the standard springs.
