Suspension Secrets Lower Control Arm Inner Monoball - Porsche Boxster/Cayman (986/987)

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Suspension Secrets Lower Control Arm Inner Monoball - Porsche Boxster/Cayman (986/987)

Increase chassis rigidity and sharpness with Suspension Secrets billet aluminium Lower Control Arm Inner Monoball for the Porsche 987 Boxster.

The standard inner suspension bushes on the 987 Boxster are made of pliable rubber. This rubber flexes when driving quickly, which causes the suspension geometry to change, leading to your Porsche feeling sloppy and vague.

In order to fix this Suspension Secrets designed their Lower Control Arm Inner Monoball for the Porsche 987 Boxster. Suspension Secrets monoballs replace the OEM rubber bushes and, as they do not flex, the ensure the suspension is not deflected when driving hard.

The key benefits of Suspension Secrets Lower Control Arm Inner Monoball for the Porsche 987 Boxster are:

  • Increased chassis rigidity 
  • Reduced geometry change when cornering
  • Improved steering sharpness and chassis feedback
  • Good upgrade for tired original rubber suspension bushes


Suspension Secrets' products are designed and manufactured in the UK. Suspension Secrets products are made from billet aircraft-grade 6082 T6 aluminium and corrosion-resistant 316 stainless steel. Suspension Secrets use motorsport-spec bearings for maximum performance and longevity.

Suspension Secrets Lower Control Arm Inner Monoball - Porsche Boxster/Cayman (986/987)