E8X/E9X/F8X Monoball Rear Lower Camber Arm Bush

If you're wanting to refine the handling of your E8X 1 series, E9X 3 series or F8X M2/M3/M4, this ball joint upgrade replaces a rubber bush that performs a critical roll in camber geometry as well as spring & damper function. 

In a multi link suspension system, the lower control arms experience roughly double the force of the upper arms and thus, rubber in these locations generally produce more flex resulting in unwanted changes in camber geometry when cornering and to a lesser extent toe.
In modern BMW's the lower camber arm also serves to support the weight of the car as well as the dampening force. By upgrading from rubber, to a ball joint eliminates suspension binding in travel as well as micro movements enabling the spring & shock to function smoother and provide more consistent geometry.

This product utilises the exact same OEM ball joint used in the upright end of the rear lower camber arm pre-installed into a custom sleeve and supplied with shims to adapt it to the subframe end.
This bush should not influence NVH levels as cornering forces build slowly and gradually as the car rolls.