034Motorsport Billet Aluminum X-Brace Chassis Reinforcement Upgrade

Transform your driving experience with the 034Motorsport Billet Aluminum X-Brace, designed specifically for B8 & B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5, and Allroad models. The factory subframe brace, made from stamped steel, can flex under load, compromising your car's suspension geometry and leading to vague steering feel. With the X-Brace, you can eliminate that flex and enhance your handling performance.

Why Upgrade to the X-Brace?

Machined from T6-6061 billet aluminum, the 034Motorsport X-Brace is engineered for superior strength and rigidity compared to the stock part. Weighing just 8.2 pounds, it's slightly heavier than the factory's 7.8 pounds, but the added rigidity is well worth it. This upgrade ensures that your suspension remains precise, especially during aggressive cornering.

Features

• T6-6061 Billet Aluminum Construction
• CNC-Machined In-House for Precision
• Clear Anodized Finish for Enhanced Durability
• Direct Replacement for Factory Front Subframe Brace
• Significantly Reduces Chassis Flex When Cornering
• Improves Handling Dynamics and Overall Performance
• Enhances Steering Feel, Consistency, and Precision
• No Additional NVH Transfer into the Cabin
• Compatible with Both B8 (Pre-Facelift) & B8.5 (Facelift) Models
• Quick and Easy Installation

What's Included

• 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement
• Modular X-Brace Inserts (Set of 2)
• M10 X-Brace Assembly Screws (Set of 4)
• M5 Undercarriage Tray Mounting Screws (Set of 4)
• 15mm Undercarriage Tray Mounting Washers (Set of 4)

Fitment

• 2009 - 2016 Audi A4 (B8/B8.5) All LHD Models
• 2010 - 2016 Audi Allroad (B8/B8.5) All LHD Models
• 2010 - 2017 Audi S4 (B8/B8.5) All LHD Models
• 2013 - 2017 Audi RS4 (B8/B8.5) All LHD Models
• 2008 - 2017 Audi A5 (B8/B8.5) All LHD Models Except Cabriolet
• 2008 - 2017 Audi S5 (B8/B8.5) All LHD Models Except Cabriolet
• 2013 - 2017 Audi RS5 (B8/B8.5) All LHD Models Except Cabriolet
• 2008 - 2017 Audi Q5/SQ5 (B8/B8.5) All LHD Models

Replaces

• 8T1 399 345J / 8T1399345J
• 8K1 399 345E / 8K1399345E

Notes

• Designed for LHD (Left-Hand-Drive) Vehicles Only. Not Compatible with RHD (Right-Hand-Drive) Vehicles.
• Does Not Fit Cabriolet Models.
• While the X-Brace fits the Audi RS5, it may block some mounting points for the plastic shield due to variations in the belly pan.
• For best results, use new factory stretch bolts for installation. Complete factory bolt kits are sold separately.

Customer Feedback

A 2015 Audi S4 owner shared, "After installing the X-Brace, I instantly felt the difference in cornering. The steering is much more responsive, and there’s no more vague feeling when pushing through turns." Another customer with a 2014 Audi Q5 noted, "This upgrade was a breeze to install and transformed my driving experience. It's a must-have for anyone serious about handling."