Millway Rear Upper Control Arms BMW M3 M4 G80 G82

On track, when cornering loads increase lateral forces, the original rubber bushings are known to flex, compress and cause deviations in the geometry.

This creates a feeling of instability and blurs your perception of how the rear axle is behaving. In this case there is only one solution: stiffen and switch to spherical bearings.

Recommended for anyone who wants to run on slicks and enjoy maximum grip.

These parts, designed and manufactured by Millway in Sweden, correct these shortcomings with classic but proven choices:

• Light and strong materials (anodised aerospace-grade 7075-T6 aluminium)
• Motorsport-quality spherical bearings
• Optimised weight
  

The other part number corresponds to the toe arm.

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Team Lupos' take:

If you don't do track days, this type of part will be of little use, since you cannot load the suspension on open roads the way you do on track; it will add extra noise and vibration through the chassis. Sport bushing-type solutions will be more appropriate (but too fragile on track).