Adjustable Koni Sport series dampers are tuned to bring the S550 Mustang's suspension to a higher level of performance. External rebound adjustment allows optimizing the damping for stock OEM springs as well as for aftermarket lowering and performance springs.

• Improves handling by providing better damping control
• Wide adjustment range of the Koni Sport series matches well with both stock springs and aftermarket performance springs.
• Replacement for stock shock; requires minor modification to OEM rear upper shock mounting bracket
• Rebound valving is easily adjusted by rotating a knob at the top of the shock.
• Twin-tube design
• Gas pressurized to resist oil foaming
• Matching front Koni Sport struts available
• Set of 4 available (2 struts and 2 shocks)
• Limited lifetime warranty from Koni

Does NOT fit GT350 or GT350R.

Installation note
The Koni rear shock requires enlarging the hole in the stock aluminum upper shock mounting bracket. The hole must be drilled out to accommodate the larger diameter shaft of the Koni shock. The Koni shaft is larger than the stock shaft to provide room for the adjuster mechanism. MM has instructions for drilling.

International Orders
We sell and ship Koni products only to customers within the United States and Canada, as per our Koni distributorship contract. If you are not in the US or Canada, please order from a Koni distributor located within your country.