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034Motorsport X-brace Billet Aluminum Chassis Reinforcement (09-16 A4, 10-16 S4, 08-17 A5/S5)

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$596.00
596.00  
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SKU: 108945
MPN: 034-603-0008

Product Details

Description

034Motorsport is proud to offer our Billet Aluminum X-Brace Chassis Reinforcement Upgrade for the B8 & B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5, and Allroad! The factory Audi front subframe brace is manufactured from multiple pieces of stamped steel, and allows for performance-hindering chassis flex under load. This torsional flex can result in improper suspension geometry and alignment when cornering, and leads to vague steering feel and lack of steering precision.

034Motorsport's B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5, Allroad X-Brace Chassis Reinforcement Upgrade is designed to replace the factory front subframe brace to increase torsional rigidity, resulting in improved steering feel and handling performance. Machined in-house from T6-6061 billet aluminum, the 034Motorsport X-Brace is engineered to outperform the stock welded, stamped steel part and ensure that suspension geometry is not compromised by chassis flex under hard cornering.

The beautifully-crafted X-Brace is a direct, bolt-in upgrade for both B8 and B8.5 chassis vehicles, and offers more direct and consistent steering feel, and better handling, without sacrificing comfort.

The 034Motorsport X-Brace is a billet aluminum chassis reinforcement to replace the factory front subframe brace to increase torsional rigidity, improving steering feel and handling performance. Machined in-house from T6-6061 billet aluminum, the 034Motorsport X-Brace is engineered to outperform the stock welded, stamped steel part and ensure that suspension geometry is not compromised by chassis flex under hard cornering. Weighing in at 8.2 pounds versus 7.8 pounds for the factory-stamped steel part, the X-Brace adds significant strength and rigidity with a negligible effect on weight.

This chassis brace upgrade was thoroughly tested by 034Motorsport and independent Audi enthusiasts before release. Installation is very simple, can be performed in minutes, and is completely reversible.

What's Included:

  • 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement (Fits B8/B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5)
  • 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)
Please Note:
  • Fits LHD (Left-Hand-Drive) Vehicles Only. Does Not Fit RHD (Right-Hand-Drive) Vehicles.
  • Does Not Fit Cabriolet.
  • The X-Brace will fit the Audi RS5, however, due to a variation in the belly pan, it will block some mounting points for the plastic shield.
  • We recommend using new factory stretch bolts to install the X-Brace. Complete factory bolt kits are sold separately. 
    • B8 (Pre-Facelift) X-Brace Bolt Kit
    • B8.5 (Facelift) X-Brace Bolt Kit 

Product Features

  • T6-6061 Billet Aluminum Construction
  • CNC-Machined In-House
  • Clear Anodized Finish for Durability
  • Engineered to Replace Factory Front Subframe Brace
  • Drastically Reduces Chassis Flex When Cornering
  • Enhances Handling Dynamics and Performance
  • Improves Steering Feel, Consistency, and Precision
  • Will Not Cause Additional NVH Transfer Inside Cabin
  • Modular Design Fits Both B8 (Pre-Facelift) & B8.5 (Facelift) Models
  • Easy, Straightforward Installation!

OE Numbers

  • 8T1399345J
  • 8K1399345E

installation

The installation of your 034Motorsport X-Brace Billet Aluminum Chassis Reinforcement for the B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 is a relatively simple process that will take approximately one hour to complete.

Downloads

8/B8.5 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 X-Brace Install Guide

warranty

Fitment Guide

Does this fit my vehicle?

Fitment Guide
Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2009 2016 AUDI A4
A4 QUATTRO
BASE
AVANT
PREMIUM
PREMIUM PLUS
PRESTIGE
ALL ALL ALL ALL ALL ALL  
2008 2017 AUDI A5 QUATTRO BASE
PREMIUM
PREMIUM PLUS
PRESTIGE
SPORT COUPE
ALL ALL ALL ALL ALL ALL Does not fit Cabriolet models. 
2009 2017 AUDI Q5 QUATTRO ALL ALL ALL ALL ALL ALL ALL  
2013 2015 AUDI RS5 BASE V8 4.2 GAS FI NA ALL Does not fit Cabriolet models. 
2010 2016 AUDI S4 BASE
PREMIUM PLUS
PRESTIGE
ALL ALL ALL ALL ALL ALL  
2008 2017 AUDI S5 BASE
COUPE
PREMIUM PLUS
PRESTIGE
ALL ALL ALL ALL ALL ALL Does not fit Cabriolet models. 
2014 2017 AUDI SQ5 PREMIUM PLUS
PRESTIGE
ALL ALL ALL ALL ALL ALL  

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