The 034Motorsport Billet Aluminum Rear Subframe Mount Insert Kit for B8/B8.5 Audi S4/RS4, S5/RS5, Q5/SQ5 is designed to limit movement in the factory rear subframe mounts to maintain proper suspension geometry when cornering, and improve the responsiveness of the rear suspension and differential.
By filling small voids in the four factory mounts as well as limiting vertical movement, this insert set eliminates the associated slop to ensure that you experience a more refined, connected driving experience, especially when driving at the limit. These billet aluminum parts will not pack and wear over time, and offer a lasting performance improvement.
Please Note: The four factory rear subframe bolts can be reused at the torque specified in our Installation Guide. If you wish to purchase new stretch factory hardware, the part number for these bolts is WHT004756A.