Performance Polyurethane Differential Bushing Set - E9X M3

Product Details

*Click here for installation instructions.*

Genuine BMW differential bushings are manufactured of a rather soft rubber compound that is specifically designed to absorb the vibrations between the chassis and differential, providing comfort and softness for normal driving conditions. Differential bushings are very important to vehicle handling, as they help to keep the rear end panted during power delivery to the wheels and the ground. However, differential bushings, like most bushings, are a wear item. Not only are the OE BMW bushings quite soft, but they can also wear out rather quickly in just a matter of years. They are not designed to last the lifetime of the car. You should inspect your differential bushings periodically, especially if you drive aggressively, as this can also wear out these bushings even faster. If you ever notice any cracking in the bushings, its time to replace them, for the best handling feel and experience. If you just picked up a used E9X M3, odds are your vehicle could benefit from a differential bushing replacement. 

Enter ECS Tuning's In-House Engineered Performance Polyurethane Differential Bushings. These differential bushings provide a more enhanced driving experience by removing unwanted movement & slop from the driveline. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is very significantly reduced. By upgrading to the ECS Diff Bushings, you can expect a crisper driveline response, due to the reduced unwanted movement of the differential. These bushings are engineered to withstand extreme driveline forces, so you can always count on them to perform in even the harshest conditions.

All of this translates directly to better power transfer from the differential to wheels, and the wheels to the pavement. This means better throttle control and handling while carving a canyon road, drag racing, sliding the rear end out, or just driving to work. This is achieved without the harshness or vibration associated with delrin or solid differential mounts.

Featuring a tough 95A Durometer Red Polyurethane, and Black Anodized 6061-T6 aluminum Sleeve, the E9X M3 Performance Polyurethane Differential Bushings are more resistant to chemicals, ozone degradation, road salt, and general wear and tear than factory rubber bushings, resulting in a much longer life span.

Features & Benefits:

• Provides a more enhanced driving experience by removing unwanted movement from the driveline.
• Reduced drivetrain deflection improves throttle response and reduces wheel hop tendency.
• 95A Polyurethane isolator reduces unwanted drivetrain movement while still allowing for an aggressive yet streetable driving experience. 
• Type II Anodized 6061-T6 CNC billet aluminum inserts for superior corrosion resistance and durability.
• Engineered to withstand high torque loads and extreme driveline forces.
  • Driveline loading conditions from driveshaft input torque and half shaft output torque evaluated/calculated from laser scan/probe data with worst case scenario operating conditions assumed.
  • Poly formulation and durometer, profile, and loaded surface area designed to minimize stress concentrations to stay within acceptable compressive strain limits of the material 

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