Eibach 25mm Rear Anti-Roll Bar Kit for 2021-2023 BMW M2, M3 and M4 (G8X) - E40-20-057-01-01

Improve your car's performance and handling with the Eibach Anti-Roll-Kit. This kit is designed to reduce body roll when cornering, resulting in improved stability, better handling, and increased driver confidence. The kits include front and/or rear stabilizer bars made from high-strength steel for durability and precision along with all necessary mounting hardware. Installing this kit is a great way to take your driving experience to the next level! Rear Sway Bar is Tubular and 3 Way-Adjustable.

• Engineered and Tested for Each Vehicle Application:
• Compatible with OEM and Performance Setups:
• Precision-Tuned for Balance and Control:
• Increased Vehicle Stability:
• Made by Eibach in the USA

Improve cornering stability and handling response with the Eibach Anti-Roll-Kit rear sway bar for BMW G8X performance vehicles. Designed to reduce body roll during hard cornering, this high-strength steel bar helps maintain a more controlled chassis, improve driver confidence, and support precise vehicle control on the street or track. The 25mm rear bar uses a tubular construction and offers three-way adjustability, allowing the handling balance to be tailored to driving preferences, tire combinations, and suspension setups.

Engineered and tested for the applicable vehicle platform, the Eibach E40-20-057-01-01 is compatible with both OEM and performance suspension components. Its precision-tuned design complements the vehicle’s existing suspension geometry while helping provide a balanced response between the front and rear axles. The kit is manufactured by Eibach in the USA and includes the components and mounting hardware required for installation. Professional installation and alignment checks are recommended after installation.

Key Product Specifications and Technical Data

• Product Type: Rear anti-roll bar and sway bar kit
• Brand: Eibach
• Part Number: E40-20-057-01-01
• Bar Diameter: 25mm
• Construction: Tubular high-strength steel
• Adjustment: Three-way adjustable
• Application: BMW G8X M2, M3 and M4 models
• Manufacturing: Made by Eibach in the USA

What's Included

• One Eibach rear anti-roll bar
• Mounting hardware required for installation

Fitment includes select 2021-2023 BMW M2, M3 and M4 applications, including listed G8X-generation models. Verify the vehicle year, model, drivetrain, and suspension configuration before ordering.

Features:

• Engineered and Tested for Each Vehicle Application: Application-specific tuning helps deliver predictable handling and chassis control.
• Compatible with OEM and Performance Setups: Designed to work with factory and upgraded suspension components.
• Precision-Tuned for Balance and Control: Three-way adjustment allows the rear handling response to be tailored to driving conditions and preferences.
• Increased Vehicle Stability: Reduces body roll during cornering for improved stability, handling, and driver confidence.

Fitments:
2021 BMW M3 Base
2021 BMW M3 Competition
2021 BMW M4 Base
2021 BMW M4 Competition
2022 BMW M3 Base
2022 BMW M3 Competition
2022 BMW M3 Competition xDrive
2022 BMW M4 Base
2022 BMW M4 Competition
2022 BMW M4 Competition xDrive
2023 BMW M2 Base
2023 BMW M3 Base
2023 BMW M3 Competition
2023 BMW M3 Competition xDrive
2023 BMW M4 Base
2023 BMW M4 Competition
2023 BMW M4 Competition xDrive
2023 BMW M4 CSL
2024 BMW M2 Base
2024 BMW M3 Base
2024 BMW M3 Competition
2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2024 BMW M4 Base
2024 BMW M4 Competition
2024 BMW M4 Competition xDrive
2025 BMW M2 Base
2025 BMW M3 Base
2025 BMW M3 Competition
2025 BMW M3 Competition xDrive
2025 BMW M4 Base
2025 BMW M4 Competition
2025 BMW M4 Competition xDrive
2025 BMW M4 CS
2026 BMW M2 Base
2026 BMW M3 Base
2026 BMW M3 Competition
2026 BMW M3 Competition xDrive
2026 BMW M4 Base
2026 BMW M4 Competition
2026 BMW M4 Competition xDrive

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1