Application:
Fits BMW 3-Series E90, E91, and E92
For use with factory springs or Eibach Pro Series springs only.

Product Description:
One set of FOUR (4) Shocks featuring Frequency Selective Damping!
The first shock absorber offering superior road-holding without compromising comfort.

Koni introduces FSD, the first no-compromise shock absorber in the world. A revolutionary new technique which combines the benefits of firm and comfortable suspension in a single perfect shock absorber. Firm for sporty driving on even road surfaces. Comfortable for a smooth ride on uneven road surfaces.

Realizing the seemingly impossible!
Two characteristics that seemed diametrically- opposed, proved to be a source of inspiration for specialists from KONI. Following lengthy development and testing, the ultimate solution was reached: KONI FSD - Frequency Selective Damping.
A revolutionary new technique whereby the benefits of both types of ride characteristics are combined in one perfect shock absorber. Banishing the disadvantages of the past. FSD shock absorbers; a smart suspension system adjusting automatically to road conditions as well as driving style. And all of this in a fraction of a second. FSD guarantees greater stability, greater control and thus greater driving pleasure.

Need an Installer? The Tire Rack's List of Recommended Installers are a great installation option. You can drop-ship to their location, too!