Koni FSD Strut and Shock Set (F25)

Manufacturer Number: 2100-4193

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Koni FSD (Frequency Selective Damping) patented technology provides a firm ride on long bumps and corners for control, and a soft ride on expansion joints and rough roads for comfort. This damper should significantly improve ride quality on your X3 without sacrificing handling. ...

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Koni FSD (Frequency Selective Damping) patented technology provides a firm ride on long bumps and corners for control, and a soft ride on expansion joints and rough roads for comfort. This damper should significantly improve ride quality on your X3 without sacrificing handling.

The FSD has an extra valve that controls an oil flow parallel to the piston assembly that opens over high frequency inputs, such as expansion joints, providing a smooth ride. The valve closes over low frequency inputs such as cornering transitions, providing better control. The valving is integrated into the strut, is non-electronic, and does not require any external sensors or adjustments.

 

KONI is the premier manufacturer of performance and adjustable shocks in the world. KONI shocks are made from the highest quality raw materials and machined to the highest tolerances. This quality is represented not only by KONI's long heritage in motorsports but has also afforded KONI the ability to offer a limited lifetime warranty on many of its shocks. KONI has taken shock absorber performance and comfort to the next level with patented Special ACTIVE technology.
BMW
  • X3d (F25) w/ 2.0L N47 Engine (2015-2016)

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