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APR Tuning

Strut Tower Brace (B9) Fits Audi A4 17-25, S4 18-25, RS4, A5 17-25, S5 18-25, RS5 18-25 APR

$374.95 $349.95 Save $25.00

SKU: A0CU SUS00027

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: SUS00027

Introducing the APR Strut Tower Brace (B9 Chassis - A4/5, S4/5, & RS4/5)

Features:

  • Increased Chassis Rigidity - Reduces flex under load for improved suspension performance and handling stability.
  • 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.
  • Full Strut Tower Integration - Connects both towers and the firewall for superior structural reinforcement.
  • Adjustable Preload with Turnbuckle - Fine-tune chassis stiffness to optimize handling for different driving conditions.
  • Improved Steering Feel - Enhances driver feedback and consistency during aggressive driving.
  • No Compromise on Comfort - Engineered to prevent additional NVH, maintaining a smooth and refined ride.
  • Direct Bolt-On Installation - No cutting or permanent modifications required, making installation seamless.
  • 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.

Fits Audi A4 17-25, S4 18-25, RS4, A5 17-25, S5 18-25, RS5 18-25

MIA's Description

The APR Strut Tower Brace for the B9 Chassis A4/5, S4/5, RS4/5, is engineered to enhance chassis rigidity, reduce flex, and improve handling for a more connected driving experience. It replaces the factory-stamped aluminum brace with a high-strength tubular chromium-molybdenum alloy steel system, significantly increasing structural support while maintaining ride comfort. The 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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandAPR Tuning
Part NumberA0CU SUS00027

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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