SPL Parts Adjustable Rear Upper Camber and Traction Links for 2021-2026 BMW M3/M4 (G8X)

Fits select 2021-2026 BMW M3 and M4 models (Base, Competition, xDrive, CS, and CSL).

SPL Parts adjustable Rear Upper Arms (RUA) are engineered to correct the aggressive camber curve found on G8X chassis BMWs, particularly those with lowered ride heights. These links replace the soft factory rubber bushings with smooth-articulating, Teflon-lined rod ends to eliminate bushing deflection and ensure consistent alignment under load. By providing a wide range of adjustment, this kit allows for precise rear camber settings to optimize traction during acceleration and maximize cornering grip while preventing premature inner-tire wear on both the street and the track.

The kit features a 6061-T6 billet aluminum curved rear upper camber arm and gun-drilled 6061-T6 aluminum traction links to minimize unsprung weight without sacrificing structural integrity. Adjustment is handled by an innovative 360-degree rotating clamp and a double-adjuster design, allowing for quick, precise changes without removing the arms from the vehicle. All components are finished in black anodizing for superior corrosion resistance and secured with blue anodized titanium socket head cap screws.

• Replaces factory rear wishbone and rear guide links (MPN: SPL RUA G8X)
• Lightweight gun-drilled 6061-T6 aluminum traction links
• 6061-T6 billet aluminum curved camber arms with black anodized finish
• Double adjuster design for easy on-car alignment
• Teflon-lined rod ends for smooth articulation and zero deflection
• Blue anodized titanium hardware reduces unsprung mass
• Proudly engineered and assembled in the USA