Powerflex BMW M3/M4 Dual Mount Rear Differential Bracket replaces BMW's factory single bush bracket that promotes excessive wear on the rear subframe-to-diff bush. This design is very flawed as is creates a pivot point for the diff under torque loading. With hard launch starts and sudden and frequent on-off throttle changes, this puts the single rear OE rubber bush through extreme torsional and directional forces, resulting in accelerated ageing with failure often seen at around the 30-40,000 mile mark
Powerflex has come up with a unique solution! To prevent an unsettled and clunky rear end, they developed this dual-mount rear differential bracket, made from in-house CNC machined 6082 high-tensile aluminium, designed to utilise the secondary mounting position on the OE subframe. The addition of a second bush, prevents the diff from twisting under load.
(See number '30' on diagram)
BENEFITS
- Reduced drivetrain movement- Improved throttle response
- A more controlled & consistent on/off throttle chassis response
- Reduced wheel hop
- Reduced strain on bushes
- Corrosion-resistant
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.