Upgrade the rear suspension geometry of your BMW F2x / F3x platform with lightweight aluminium rear trailing arms. Designed as a high-strength replacement for the factory steel arms, these reduce unsprung mass, improve suspension responsiveness, and deliver more direct and predictable handling under load.

Precision-machined for perfect alignment, these trailing arms maintain factory mounting points while offering significantly improved rigidity, making them ideal for performance street cars, track builds, and spirited driving setups. By minimizing flex in the rear suspension, they help preserve consistent toe and camber characteristics, especially during hard acceleration and cornering.