Originally Posted by NRBRNG
Hmmm...not yet. Apologies. i will send a chaser.
As rldzhao said in his post, the CS kits use KW's linear racing springs. The good news is that the spring part number (that's printed on the spring itself) includes a code that identifies the rate, the free length and the diameter. In other words, if they're KW racing springs, then the rates are printed on them and you don't need to ask the guy you bought them from.
Next time you have the car in the air, check your springs and post the printed numbers (all of them - there are other codes on them as well that identify the manufacturing batch and so on). Once you post the part number we can figure out the rates from there.