SPL Parts BMW E9X/E8X/F8X Rear Lower Control Arm Inner Bushing

Rubber should be saved for the tires. The factory rear lower control arm inner bushings on BMW E9X, E8X and F8X chassis 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.

Control arm pivots that do not squirm

By replacing the large inner bushings at the rear lower control arms, these SPL pieces keep camber and toe from wandering as the suspension loads up. That stability is especially important on wide tire, high grip cars.

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 E9X, E8X and F8X chassis for serious driving, these pieces are a key part of getting the alignment and feedback you want.