Herbmiester 925 Report post Posted December 25, 2016 So my Konis have finally turned up in country and I hope to fit them along with Front M3 Control and control arms.(Stiffer bushings and a bit more camber.) I am tossing up whether to fit some aftermarket springs. I have used Eibach in the past and have been impressed. On the e92 the Eibach ProLine are progressive and will drop the ride height by about 13mm. From what I can gather the Eibach spring rates are similar to the BMW sport springs. Just wondering what others have done with their e92/90 suspension and has anyone fitted a bigger rear anti roll bar? Quote Share this post Link to post Share on other sites