The B8/B8.5 Audi S4/RS4, S5/RS5, and Q5/SQ5 use rubber rear subframe mounts that can deflect under load, leading to a loose-feeling rear end, compromised suspension geometry, and increased understeer. These precision-machined billet aluminum inserts fill the voids in the factory mounts, limiting subframe movement while maintaining ride quality and minimizing additional noise, vibration, or harshness. The result is a more connected driving experience and improved performance from aftermarket rear sway bars and suspension components.
Engineered to work alongside the factory rubber mounts, this insert package was designed using CAD software and thoroughly tested to enhance handling performance and feel. Installation is straightforward, reversible, and can be completed in under an hour.
Construction & Features:
-
T6-6061 Billet Aluminum Construction
-
CNC-Machined In-House
-
Clear Anodized Finish for Durability
-
Fills Voids in Factory Rear Subframe Mounts
-
Maintains Proper Suspension Geometry During Cornering
-
Reduces Rear Subframe Movement During Launches & Acceleration
-
Improves Shifting Feel for Crisper Shifts
-
Minimal NVH Transfer
-
Easy, Straightforward Installation
Included in the Kit:
-
Front Rear Subframe Inserts (Pair)
-
Rear Rear Subframe Inserts (Pair)
-
Installation Instructions (PDF)