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.

Complete factory subframe bolt kit for the B8 (Pre-Facelift) Audi A4/S4, A5/S5, and Q5. We recommend using these new factory stretch bolts to install the 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement Upgrade.

Complete factory subframe bolt kit for the B8.5 (Facelift) Audi A4/S4, A5/S5, and Q5. We recommend using these new factory stretch bolts to install the 034Motorsport Billet Aluminum X-Brace Chassis Reinforcement Upgrade.