The ST XTA coilover kit gives BMW E46 owners adjustable ride height plus 16-click adjustable rebound damping, so you can dial the car from comfort to track-ready with a turn of the knob. It runs a linear race spring system on galvanized zinc-coated steel struts and includes aluminum unibal camber-adjustable top mounts at the front axle for aggressive wheel fitment and a wider tire contact patch. A friction-optimized polyamide composite spring perch with a stainless-steel insert resists corrosion for long-lasting height adjustability. Built by hand by KW in Fichtenberg, Germany, and shock-dyno tested before it ships.
| Type | Coilover kit (ST XTA) |
| Adjustability | Ride height + rebound damping; front camber via top mounts |
| Damping | 16-click manual rebound |
| Construction | Monotube, galvanized zinc-coated steel |
| Springs | Linear race spring system |
| Top Mounts | Aluminum unibal, camber-adjustable (front) |
| Part Number | 18220821 |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000 | BMW | 323Ci | Base |
| 1999-2000 | BMW | 323i | Base |
| 2001-2006 | BMW | 325Ci | Base |
| 2001-2005 | BMW | 325i | Base |
| 2000 | BMW | 328Ci | Base |
| 1999-2000 | BMW | 328i | Base |
| 2001-2006 | BMW | 330Ci | Base |
| 2001-2005 | BMW | 330i | Base |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
