Powerflex Subframe for BMW E39 M5 S62 5.0L

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex street bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Need bushings for a dedicated track car? Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

The Powerflex Rear Subframe Rear Mount Insert for the BMW E39 5 Series is specifically designed to enhance the performance and stability of the rear suspension system. By utilizing high-quality polyurethane, this insert significantly improves the rigidity of the rear subframe, offering a range of benefits for driving enthusiasts.

Key Benefits:

1. Enhanced Handling Performance: The insert reduces flex in the rear subframe mount, resulting in improved stability during cornering. This enhancement leads to better handling characteristics, allowing for more precise control and confidence when navigating turns.

2. Durability and Longevity: Constructed from resilient polyurethane, these inserts are designed to withstand harsh driving conditions and resist wear from oil, heat, and environmental factors. This durability ensures they maintain performance over a longer period compared to traditional rubber mounts.

3. Improved Road Feel: By minimizing unwanted movement in the subframe, these inserts provide enhanced feedback to the driver, allowing for a more connected and engaging driving experience. This is particularly beneficial for spirited driving and performance applications.

4. Straightforward Installation: Designed for a direct fit into the existing rear subframe mounts of the E39 5 Series, these inserts allow for easy installation without the need for modifications or extensive labor.

Ideal for BMW enthusiasts looking to upgrade their E39 5 Series's suspension system, these inserts deliver improved handling and responsiveness, making them suitable for both everyday driving and high-performance scenarios.