Your rear toe setting looks perfect on the alignment rack. Under load on track, it's a different story.
The factory rear toe arms on the G8X and F8X M-cars use rubber bushings that flex under hard acceleration, braking, and cornering. That flex changes your rear toe geometry in real time, exactly when you need it to stay put. The MMX Performance Adjustable Rear Toe Arm Set fixes that. Machined from billet 6061-T6 aluminum with precision pillow ball rod ends, these direct-replacement arms eliminate bushing deflection and let you dial in rear toe to your exact spec.
Why Pillow Balls Change Everything
Rubber bushings are designed to absorb NVH. That same compliance lets the arm move when the suspension loads up. Pillow ball rod ends have one job: pivot precisely and nothing else. Your rear toe stays where you set it whether you're tracking the car hard, pushing through an on-ramp, or running a tight autocross course. More consistent geometry means more predictable handling, better tire contact through the whole corner, and tire wear that actually makes sense.
Adjustable Means You Can Align It Right
Unlike OEM-fit bearing replacements, the MMX toe arms give you actual adjustability. Running a lowered setup, wider wheels, or want to fine-tune rear toe for track versus street? You have the range to do it. Set them, get a professional alignment, and know your rear geometry is locked in.
Key Features
- Machined from billet 6061-T6 aluminum for maximum strength and rigidity
- Precision pillow ball rod ends eliminate factory rubber bushing deflection
- Adjustable design allows custom rear toe setting
- Maintains consistent rear toe geometry under load
- Improves rear-end stability, chassis response, and handling predictability
- Reduces uneven and premature rear tire wear
- Protective rubber boots shield rod ends from moisture and debris
- Direct bolt-on replacement for factory toe arms
- No cutting, drilling, or permanent modifications required
- Fully reversible to stock configuration
- SKU: MMR55-1609
Vehicle Fitment
Fits the following BMW M models, including Competition and xDrive variants:
- BMW G87 M2 (2023-2025)
- BMW G80 M3 / G81 M3 Touring (2021-2025)
- BMW G82 M4 Coupe / G83 M4 Convertible (2021-2025)
- BMW F87 M2 / M2 Competition (2016-2021)
- BMW F80 M3 (2015-2018)
- BMW F82 M4 Coupe / F83 M4 Convertible (2015-2020)
Installation Notes
Direct bolt-on replacement for the factory rear toe arms. Professional alignment required after installation.
- Raise and safely support the vehicle, then remove the rear wheels
- Remove the factory rear toe arm hardware and arm
- Install the MMX toe arm using the factory mounting locations
- Set preliminary toe adjustment before torquing fasteners to spec
- Reinstall wheels and lower the vehicle
- Take the vehicle to an alignment shop to finalize rear toe
Note: Lowering the vehicle reduces the available toe adjustment range and increases minimum rear camber. Factor this into your alignment spec when building a lowered setup. Pairs with the MMX Rear Camber Arm Bearing Set (MMR55-1651) and Rear Toe/Traction Arm Bearing Set (MMR55-1650) for a complete rear suspension bushing upgrade.
