The KW Variant 1 (V1) INOX-LINE coilover kit is a complete height-adjustable suspension system for the 2001-2006 BMW M3 (E46), developed specifically for this chassis on the Nurburgring Nordschleife and KW 7-post rig. Damping is fixed, with vehicle-specific spring rates and a factory-tuned setup that balances street comfort with sporty handling. Ride height is adjustable across an approved lowering range of roughly 0.8-1.5 in. (20-40 mm) front and rear via the threaded INOX-LINE stainless-steel strut housings, which resist corrosion for the life of the kit. Each kit is hand-built and serialized in Fichtenberg, Germany, and every damper is dyno-tested before shipping.
| Type | Variant 1 (V1) coilover kit, fixed damping |
| Adjustability | Height adjustable; damping non-adjustable (pre-configured) |
| Lowering Range | Approx. 0.8-1.5 in. (20-40 mm) front & rear |
| Construction | INOX-LINE stainless-steel strut housings, composite spring perches |
| Contents | Complete 4-corner coilover kit (struts, springs, bump stops) |
| Part Number | 10220023 |
| Warranty | Limited lifetime, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2006 | BMW | M3 | Base |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. 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.
