The Eibach Anti-Roll-Kit replaces the factory front and rear stabilizer bars with a 29mm front and 25mm rear set, each independently 3-way adjustable so the driver can tune the understeer and oversteer balance across street and track use. The bars are cold-formed from a high-tensile spring steel alloy, then heat-treated and shot-peened for fatigue resistance, and use precision-forged ends with OEM-style pressed bushing locators. Reducing body roll through corners gives flatter, more predictable handling, and the kit ships with the required mounting hardware and bushings. Made by Eibach in the USA.
| Type | Anti-Roll-Kit Adjustable Sway Bar Kit |
| Position | Front & Rear |
| Front Bar Diameter | 29mm (28.58mm) |
| Rear Bar Diameter | 25mm (25.40mm) |
| Adjustability | 3-Way Adjustable (front and rear) |
| Material | High-Tensile Spring Steel Alloy |
| Part Number | E40-20-057-01-11 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2026 | BMW | M2 | G87 |
| 2021-2026 | BMW | M3 | G80 |
| 2021-2026 | BMW | M4 | G82/G83 |
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.
