The ST X coilover kit is a height-adjustable suspension system engineered for the daily driver who wants a lower, sportier stance without giving up street comfort. Dampers and spring rates are tuned in Germany for the Audi A6 and A6 Quattro (C6), and every unit is hand-built and shock-dyno tested by KW in Fichtenberg. Galvanized zinc-coated steel struts and a friction-optimized polyamide composite spring perch with a stainless-steel insert resist corrosion for long-lasting ride-height adjustability.
| Type | Coilover kit (ST X) |
| Adjustability | Ride height |
| Damping | Fixed |
| Construction | Galvanized zinc-coated steel strut |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2009 | Audi | A6 | Base |
| 2005-2011 | Audi | A6 Quattro | Base |
