18-25 Audi A4 Quattro/A5 Quattro/RS5/S4/S5 (B9) Strut Brace Tower

Description

By replacing the factory-stamped aluminum brace with a high-strength tubular chromium-molybdenum alloy steel system, we significantly increase structural support while maintaining ride comfort. Additionally, our cross-brace design links both strut towers, and an integrated turnbuckle allows for precise preload adjustments, further reinforcing the chassis under heavy cornering and acceleration.

Fitment

This part fits the following vehicles.

• 2017-2020 Audi A4
• 2017-2025 Audi A4 allroad
• 2017-2025 Audi A4 Quattro
• 2018-2019, 2021-2024 Audi RS5
• 2018-2024 Audi A5 Quattro
• 2018-2024 Audi S5
• 2018-2025 Audi A5 Sportback
• 2018-2025 Audi S4
• 2018-2025 Audi S5 Sportback
• 2019, 2021-2025 Audi RS5 Sportback

Features & benefits

• High-Strength Tubular Cr-Mo Alloy Steel Construction –  Stronger than the factory-stamped aluminum brace for maximum strength and durability, featuring a black powder-coated finish for superior corrosion resistance and lasting performance.
• High-Quality Materials – Constructed from durable 25mm OD / 19mm ID high-strength tubular chromium-molybdenum alloy steel with billet end caps, TIG welding, black powder coating, and all stainless steel hardware.
• Adjustable Preload with Turnbuckle – Fine-tune chassis stiffness to optimize handling for different driving conditions.
• Increased Chassis Rigidity – Reduces flex under load for improved suspension performance and handling stability.
• Direct Bolt-On Installation – No cutting or permanent modifications required, making installation seamless.
• Full Strut Tower Integration – Connects both towers and the firewall for superior structural reinforcement.
• No Compromise on Comfort – Engineered to prevent additional NVH, maintaining a smooth and refined ride.
• Improved Steering Feel – Enhances driver feedback and consistency during aggressive driving.

Videos and guides

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).