Powerflex Subframe for BMW 5 Series E39 (1996-2003)

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. 

Engineered to perform, Powerflex performance polyurethane differential 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 acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane 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 Mount Front Insert for the BMW E39 5 Series is engineered to improve the rigidity and responsiveness of the rear suspension system. By replacing the factory rubber with high-quality polyurethane, this insert enhances the overall performance and durability of the subframe mount.

Key Benefits:

1. Enhanced Suspension Stability: The polyurethane insert significantly reduces unwanted movement and flex in the subframe mount. This leads to improved stability during cornering and a more planted feel, especially when navigating twists and turns.
2. Long-Lasting Durability: Designed to resist wear from environmental factors like oil, heat, and road debris, these inserts provide superior longevity compared to factory rubber components, which may deteriorate over time.
3. Improved Road Feedback: By minimizing flex in the subframe, the insert enhances steering response and feedback, allowing for a more connected and engaging driving experience. This is particularly beneficial for drivers who enjoy spirited driving or track days.
4. Direct Fit for Easy Installation: Specifically designed for the E39 5 Series, this insert easily fits into the existing subframe mount, making installation straightforward and requiring no modifications.

Ideal for BMW enthusiasts looking to elevate their E39 5 Series's handling and performance, this insert provides a reliable solution for enhancing the rear suspension system's effectiveness, suitable for both daily use and performance-oriented driving.