From what I have read the FSD's do seem to fail more often then the koni sports, and that the sports are a better damper from an engineering/reliability view.
If you want the car lower why not go for the bilstein prokit (bilstein dampers with eibach springs) or koni do a similar thing matched with h&r springs.
I have seen quite a few clunking/clicking noise issues associated with the BC's and I think its due to the pillowball type mounts transmitting more noise then the oem rubber mounts.
|