Suspension Secrets Solid Front Control Arm Bushes – BMW M3 (G80)/M4 (G82)

The stock rubber control arm bushes flex under braking and cornering loads. This causes unwanted toe changes and vague steering, reducing stability and driver confidence—especially at the limit.

Our solid bushes eliminate that flex, locking in geometry and giving your BMW sharper turn-in, better feedback, and more predictable performance under pressure. Ideal for fast road or track-focused builds.

Key Benefits:

• Reduced understeer

• More stable under heavy braking

• Improved steering accuracy and feel

• Elimination of dynamic toe change

• More connected chassis response

Why Replace Rubber Bushes?
OEM rubber bushes are built for comfort, not performance. Under load, they flex—especially when braking hard—which causes the wheel assembly to shift and the toe angle to change. This leads to vague steering and instability.

Solid bushes fix this by holding geometry steady, giving you consistent handling and sharper response.

Toe Geometry Explained:

• Toe-in: Improves straight-line stability (common for road use)

• Toe-out: Increases turn-in sharpness (used for track applications)

• Zero toe: Minimal tyre scrub, but less responsive handling

Changing toe dynamically mid-corner or under braking makes the car feel unstable. Solid bushes prevent this.

Materials & Construction:

• CNC-machined billet 6082 T6 aluminium

• 316 stainless steel sleeves

• OE-quality Lemforder bearing inserts

• Designed and manufactured in the UK

Vehicle Fitment:
BMW G80 M3
BMW G82 M4