Powerflex Dual-Mount Rear Differential Bracket for BMW M4 F82 F83 | PFR5-4030
Upgrade your BMW M4 rear differential mount with the Powerflex Dual-Mount Rear Differential Bracket PFR5-4030. This is the go-to BMW M4 rear diff mount upgrade for drivers who want sharper throttle response, reduced drivetrain movement and less wheel hop on fast road and track. Built for the F8x platform, this dual mount diff bracket is ideal for the BMW M4 F82 and F83, and is widely used across F8x M2, M3 and M4 applications.
From hard launches to aggressive on and off throttle inputs, the factory single rear diff bush can allow the differential to twist and pivot, leading to clunks, axle tramp and premature bush wear. Powerflex PFR5-4030 uses the secondary mounting position on the OE tubular subframe to convert the rear diff to a true dual mount setup, dramatically improving control and reliability under load.
Why choose this BMW M4 rear diff bracket
- Dual mount design reduces differential twist under torque
- Improved throttle response and drivetrain precision
- More consistent on and off throttle chassis behaviour
- Better tyre to road power transfer and reduced wheel hop
- Less strain on existing diff bushes and mounts
Engineered to perform
- CNC machined 6082 high tensile aluminium for strength and durability
- Satin black anodised finish for corrosion resistance
- Optimised for high stress and deflection, suitable for standard and tuned cars
- Works with the OE single bush or dual aftermarket bushes
- Can be installed without completely removing the subframe
What is included
- Powerflex PFR5-4030 Dual-Mount Rear Differential Bracket
- M14 bolt and thread locker
- Powerflex keyring
Recommended complementary bushes
For the ultimate BMW M4 rear differential mount setup, pair this bracket with:
- PFR5-4026 Rear Diff Mounting Bushes for both rear mounting positions
- PFR5-4025 Rear Diff Front Mounting Bushes for the front positions
Fitment and use
Perfect for road and fast road use, track day cars and tuned F8x builds that demand improved rear end stability. We have fitted these brackets and the feedback from customers is consistently positive, with noticeable gains in traction, response and overall drivetrain refinement.
Professional fitting
Want it fitted by specialists who know BMW F8x chassis inside out? Nforcd can install this rear diff bracket at our Warwickshire workshop. Request a fitting quote at Sales@nforcd.com.
Key details
Part Number: PFR5-4030
Diagram Reference: 30
Series: Powerflex Road Series
Number of Bushes in Pack: 1
Replaces OEM Bush Part Numbers: 33172284775/
Compatibility and search terms
BMW M4 F82 rear diff mount, BMW M4 F83 rear differential bracket, F8x dual mount diff bracket, Powerflex PFR5-4030, BMW M4 rear diff bush upgrade, BMW F82 F83 diff mount bracket, reduce wheel hop BMW M4, BMW F8x differential bush, rear differential carrier bracket, track day diff mount, fast road diff mount.
About Powerflex Road Series
Powerflex Road Series bushes improve your car’s road holding and chassis performance by controlling unwanted suspension flex. Benefits include prolonged tyre life, improved performance, increased safety and greater cost effectiveness.