SPC Adjustable Camber/Caster Upper Control Arm Racing Kit for 2022-2024 Audi Q4 e-tron Sportback [81398]

SPC 81398 – AUDI PORSCHE ADJUSTABLE CAMBER/CASTER UPPER CONTROL ARM RACING KIT

Part Number: 81398

Summary: The SPC 81398 Adjustable Camber/Caster Upper Control Arm Racing Kit is designed to enhance handling by allowing camber and caster adjustments of ±1.5° on both sides of the vehicle. Featuring xAxis™ sealed flex joints, this kit replaces the compliant OE inner bushings for a free pivoting joint that minimizes compliance. Unlike factory arms, which may compromise handling performance, this kit provides a significant improvement in responsiveness and road feedback.

Features

• xAxis™ Sealed Flex Joints: Free pivoting design provides minimum compliance to ensure enhanced handling responsiveness.
• Forged 6061-T6 Aluminum Construction: Lightweight yet strong material provides maximized strength at a minimum weight to ensure durability without excess weight.
• Booted Ball Joints: OE style, maintenance-free design provides consistent performance to ensure reliable operation without the need for frequent maintenance.
• Adjustment Range: Camber and Caster ±1.5° provides flexibility in alignment settings to ensure optimized tire contact and handling characteristics.
• Included Hardware: Pinch bolt hardware included provides ease of installation to ensure a complete and hassle-free setup.

Technical Specifications

Fitment

• Audi A6 Quattro (2019 – 2025)
• Audi A6 allroad (2020 – 2025)
• Audi A7 Sportback (2019 – 2025)
• Audi Q4 e-tron (2022 – 2024)
• Audi Q4 e-tron Sportback (2022 – 2024)
• Audi Q5 (2018 – 2025)
• Note: Fitment data extracted directly from product description.

What’s Included

• Includes Complete Kit
• Includes pinch bolt hardware

Why Choose This Product?

• Alignment Solution: This kit allows for precise alignment adjustments, correcting camber and caster to prevent uneven tire wear and enhance handling.
• Engineering Advantage: The xAxis™ sealed flex joints provide superior handling characteristics by minimizing compliance, offering a responsive driving experience.

Frequently Asked Questions

Why do I need adjustable control arms?
Adjustable control arms are essential for achieving optimal alignment settings, especially in performance applications where handling precision is critical. They allow for fine-tuning of camber and caster to improve tire contact and responsiveness.

Is this part maintenance free?
Yes, the ball joints are designed to be maintenance-free, ensuring consistent performance without the need for regular grease applications.

Can I use this kit with factory bushings?
While this kit is optimized for performance with xAxis™ joints, you can use SPC arms with OE type bushings for a standard setup. Refer to part numbers 81393, 81391, or 81392 for additional options.