Stomp on the brakes in an F8X M car and you can feel the steering wobble as the front thrust arm bushing squirms. The Fall-Line Motorsports Front Monoball Conversion Kit V2 replaces that rubber bushing with a spherical bearing, so the front geometry stays put under load.
The result is cleaner steering feel, steadier braking and suspension that does exactly what you ask of it.
How the F8X Front Monoball Conversion Works
The kit replaces OEM bushing 31-12-2-284-532 with a spherical bearing in a precision-machined aluminum housing, hard coat clear anodized in the V2 design. It eliminates deflection and hysteresis in the thrust arm, preventing unwanted geometry changes. Made in the USA.
What's Included
- 1 x Fall-Line front monoball conversion kit (FLM-F8X-1BUNI)
Key Features
- Replaces OEM front thrust arm bushing 31-12-2-284-532
- Spherical bearing eliminates deflection under load
- Reduces steering wobble under braking
- Precision-machined aluminum housing, hard coat clear anodized (V2)
- Made in the USA
- Part number: FLM-F8X-1BUNI
Vehicle Fitment
Fits the following models:
- BMW F80 M3 Sedan (2015-2018)
- BMW F82 / F83 M4 (2015-2020)
- BMW F87 M2 (2016-2018)
- BMW F87 M2 Competition (2019-2021)
Installation Notes
A bushing press is required. Professional installation and an alignment are recommended.
- Remove the front thrust arm from the car.
- Press out the OEM rubber bushing.
- Press in the Fall-Line monoball housing.
- Reinstall the arm, torque at ride height and align the car.
