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 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.
