SPL Parts BMW G8X Rear Lower Control Arm Knuckle Bushing

Rubber should be saved for the tires. The factory rear lower control arm knuckle bushings on BMW G8X M cars including G80/G81 M3 and G82/G83/G87 M4 and M2 use soft rubber bushings that flex under load, which lets alignment and toe change right when you are asking the car to work the hardest. SPL Parts replaces those links with fully adjustable, spherical bearing components that keep the suspension honest and repeatable on both street and track.

Monoball bushings that do the job

These SPL Parts bushings replace the factory rubber with low friction spherical bearings housed in CNC machined aluminum shells. You get a direct connection between chassis and arm without the slop and spring effect of soft rubber, which improves feedback and keeps alignment where you set it.

Precise connection at the hub

These knuckle bushings replace the compliant rubber where the rear lower control arm meets the hub carrier, reducing unwanted steer effects and giving the damper and spring a cleaner signal to work with.

We use SPL hardware across many of our own builds because it is easy to work with, holds settings and stands up to real track mileage. If you are dialing in BMW G8X M cars including G80/G81 M3 and G82/G83/G87 M4 and M2 for serious driving, these pieces are a key part of getting the alignment and feedback you want.