The 034 Motorsport Billet Aluminum Rear Subframe Mount Insert Kit is specifically designed for the BMW E9X models . This product limits movement in the original rear subframe mounts to maintain better suspension geometry during cornering and improve the response of the rear suspension and differential. By filling the voids in the four original mounts and limiting vertical movement, this insert set eliminates play which provides a more refined, direct driving experience, especially during intense driving. The billet aluminum components will not wear out and provide a lasting performance enhancement. NVH (Noise, Vibration, and Harshness) refers to the amount of noise, vibration, and harshness that is transmitted into your vehicle's cabin. According to user feedback, the 034Motorsport Subframe Mount Inserts provide zero to low amounts of NVH into the cabin. However, NVH is subjective, so some users may experience an increase or decrease in NVH. If NVH is higher than expected, verify that the installation was performed correctly and contact 034Motorsport tech support for further assistance. The original E9X BMW subframe mounts are made of rubber and deform under load, leading to a vague and loose rear end, suboptimal suspension geometry, and increased understeer. These precision-machined billet aluminum inserts are designed to minimize subframe movement without compromising ride comfort or adding noise, vibration, or harshness to the cabin. The result is a more refined and connected driving experience, along with improved performance from aftermarket sway bars and suspension components.
Benefits:
• Made from T6-6061 billet aluminum
• CNC machined for precision
• Contributes to optimal suspension geometry while cornering
• Reduces rear subframe movement during acceleration
• Improves shifting for sharper responses
• No additional noticeable NVH in the cabin
• Easy installation and fully reversible
Contents:
• 2x Billet Aluminum Rear Subframe Inserts - Front Upper
• 2x Billet Aluminum Rear Subframe Inserts - Front Lower
• 2x Billet Aluminum Rear Subframe Inserts - Rear Upper
• 2x Billet Aluminum Rear Subframe Inserts - Rear Lower
• Installation Manual (PDF)
Installation Instructions
