Quote:
Originally Posted by M3 Number 86
Check the part number on the spring. Some are 12k some are 14k. I think newer ones are 12k
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Ironic you should post this a while back, as I am compiling a minefield of data right now, of change to spring rates mid production KW made. At this time, I am running KW "revised" rates 110/120. Will go into more detail about this if I start a dedicated thread, but worth noting ; not only did the rear spring rate get lowered from 800lb to 685lb, they also made it longer. To be fair, this is a quality made kit out of the box and surprisingly tolerable while street driven. This revision was most likely aimed at increasing sales, making the CS more street friendly. This does not factor in the >5% of those who have done solid subframe bushings, etc for dedicated track use. Am going to reach out to KW, to what they would recommend a rear spring rate pairing would be for the now 110(628lb) front spring. My guess, is the original 800 or there about.