Suspension Secrets Solid Front Control Arm Bushes – BMW F80 M3/F82 M4

Improve braking stability and steering accuracy by install the Suspension Secrets Solid Front Control Arm Bush for the BMW F80 M3/F82 M4.

The standard BMW front control arm bushes are made from soft rubber. This rubber flexes when driving fast, causing the steering to feel vague at the limit. These rubber bushes also flex when braking hard leading your M3/M4 to feel nervous or unstable.

To solve both of these problems, solid front control arm bushes are required. Our solid bushes are designed as press-fit replacement for the OEM BMW control arm bushes. As our bushes are solid, they eliminate all of the issues caused by soft rubber bushes. Instead you gain improved braking stability and steering accuracy at the limit.

The key benefits of our Suspension Secrets Solid Front Control Arm Bush for theBMW F80 M3/F82 M4 are:

• Increased braking stability

• Improved steering feel and accuracy

• Reduced understeer

• Increased sense of connection to the road

Further Reading

As standard, the OEM rubber bushes used by BMW are quite soft. They are built for refinement, flexibility and durability. Rubber bushes are quiet and are ideal for a car that is designed to be used frequently.

Unfortunately, when used in a performance application, rubber bushes have quite a few downsides. When braking hard, the OE rubber bushes flex. They flex so much that the wheel assembly moves rearwards as the car brakes. This causes unwanted toe geometry change which causes the car to feel very nervous and vague when braking.

The flex in rubber bushes also causes understeer and the steering wheel to feel very inaccurate during cornering.

Toe

Toe is the angle between each wheel with relation to the longitudinal axis of the vehicle. The animation below illustrates to toe-in, toe-out and zero toe.