BMW F8X M2/M3/M4 Caster Adjuster Assembly Kit part-category-rear-bumper Enhanced nighttime and adverse-weather visibility

Enhanced nighttime and adverse-weather visibility through powerful LED illumination

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Red Center Alignment RingTrack-inspired visual reference for aggressive and performance driving

Enhances rear downforce and aggressive styling

No cutting required

BMW F8X M2/M3/M4 Caster Adjuster Assembly Kit part-category-rear-bumper Enhanced nighttime and adverse-weather visibilityCarBahn is proud to announce the Caster Adjuster Assembly for the F8X M3, M4 and M2 Competition models. The CarBahn Caster Adjuster Assembly replaces the rubber bushings in the stock thrust arms with sealed precision ball joints inside machined aluminum housings. As a result of eliminating the deflection that is inherent in rubber bushings, braking stability is improved, and the tendency for the car to follow ruts in the road (especially with wider