FSD (Frequency Selective Damping) Technology by KONI

KONI FSD (Frequency Selective Damping) is the latest innovation in suspension technology.
Patented technology, the valve transforms a shock absorber into a smart suspension system that adjusts automatically and in a fraction of a second to road conditions and driving style.
The FSD is a purely mechanical technology, which lowers cost, electrical consumption in vehicles, and complexity in suspension components.
Sold direct to OE Manufacturers or in KONI Aftermarket products through the KONI Special Active performance dampers range.
For more information or to meet to discuss opportunities to add this to your vehicle, contact us at www.koni.com

[@asr1143]

I have it on my abarth 595 and I hate it, there’s a knock/pop from the rear that nobody seems to know where it come from. My mechanic can’t find the issue, it passed the TÜV recently, there’s many forums about this issue online, my best guess is the cylinder that it’s moving in and out and makes that pop noise, very noticeable curving on rough roads or when people are seating at the back. Two years chasing the problem and still there.