Koni FSD Shocks BMW E60 525i 530i 545i 550i (non-Xi/Air Susp) Mitsubishi when installed it will allow

when installed it will allow you to lock in the toe settings on the rear of the car

On a closed course

The downpipe is constucted of 304 stainless steel 3" mandrel bent tubing and bolts up to any stock replacement catback or stock unit

The reconfiguration of the flex pipe on the Performance Downpipe ensures that stress goes where it should

Koni FSD Shocks BMW E60 525i 530i 545i 550i (non-Xi/Air Susp) Mitsubishi when installed it will allowThe KONI FSD (Frequency Selective Damping) shock for the BMW E60 525i 530i 545i 550i (non Xi Air Susp) combines excellent road holding and handing characteristics with no compromise comfort levels. Firmness for sporty driving on even road surfaces. Smoothness for a comfortable ride on uneven road surfaces. It's possible via KONI's patented Frequency Selective Damping technology technology that actively controls the damping level on the basis of the