SPL PARTS SPL RUA F8X Rear Upper Arms for BMW M2/M3/M4 (F8X)

Description SPL PARTS SPL RUA F8X Rear Upper Arms for BMW M2/M3/M4 (F8X)

The SPL Parts Rear Upper Arms (RUA) for the BMW F8X platform are designed to provide precise rear camber adjustment for both street and track applications. The factory suspension geometry on lowered BMW F8X models produces an aggressive camber curve during suspension travel, often leading to excessive inner tire wear and reduced traction. These adjustable rear upper arms allow accurate camber correction while improving rear suspension stability and articulation.

The kit replaces the factory rear wishbone and rear guide links with lightweight gun-drilled 2024 aluminum arms finished in durable black anodizing for corrosion resistance. SPL Parts’ exclusive 360-degree rotating clamp system, machined from 6061-T6 aluminum, allows fast and precise adjustment without traditional jam nuts. Blue anodized titanium socket head cap screws reduce unsprung weight while maintaining structural strength.

FK spherical bearings and rod ends with PTFE Teflon liners provide smooth articulation, low friction, and eliminate bushing deflection under load. The self-lubricating and self-cleaning liner design delivers reliable operation for both road and motorsport use across a wide temperature range.

• Wide rear camber adjustment range for street and track alignment
• Reduces excessive inner tire wear on lowered vehicles
• Improves rear traction and cornering stability
• Replaces factory rear wishbone and rear guide links
• Gun-drilled 2024 aluminum arms for reduced weight
• Black anodized finish for corrosion resistance
• 360-degree rotating clamp system for precise adjustment
• 6061-T6 aluminum rotating clamps
• Blue anodized titanium socket head cap screws
• Tapered stainless steel knuckle mount spacers included
• Low-friction FK rod ends with PTFE Teflon liners
• Self-lubricating and self-cleaning bearing design
• Sold as a complete kit for one vehicle
• Made in the USA

Specifications:

• Material: Gun-drilled 2024 aluminum
• Clamp Material: 6061-T6 aluminum
• Hardware Material: Titanium
• Spacer Material: Stainless steel
• Bearing Type: FK spherical bearings with PTFE liner
• Finish: Black anodized
• Operating Temperature Range: -65°F to 325°F
• Quantity: 4 arms per kit