Powerflex Black Series Rear Differential Front Mounting Bushes for BMW F80 F82 F83 F87 M2 M3 M4
Upgrade your BMW F8x drivetrain with the Powerflex Black Series rear diff front mounting bushes. Engineered for hard road and track use, these polyurethane bushes tighten up rear differential movement for sharper throttle response, improved traction and more precise power delivery on BMW M2, M3 and M4 models.
This kit replaces all four bushes in the original rear differential front mounting bracket and includes aluminium sleeves with built-in support for maximum control under load. It is a direct-fit performance upgrade designed to reduce unwanted diff movement, minimise wheel hop and keep the rear axle geometry stable during acceleration, gear changes and cornering.
Why choose these bushes
- Powerflex Black Series polyurethane for motorsport-focused firmness and durability
- Reduces rear differential movement for a more connected, responsive drivetrain
- Enhances traction, stability and launch consistency
- Aluminium sleeves with integrated support increase bush stiffness and control
- Direct replacement for the OEM rubber bushes in the diff front mounting bracket
What’s included
- 4 x bushes for the rear diff front mounting bracket
Fitment and compatibility
- BMW M Series F87 M2 (2014–2019)
- BMW M Series F80 M3 (2012–2018)
- BMW M Series F82 F83 M4 (2013–2019)
OEM part number cross-reference: 33172284774. Diagram No. 21.
Part number
PFR5-4025BLK
Description from manufacturer
PFR5-4025 is a replacement bush that includes aluminium sleeves with built-in support to increase control of rear diff movement and replaces all four bushes in the original rear diff front mounting bracket.
Real-world results
We run these on our own builds and customer cars and the feedback is consistently positive. Owners report a tighter, more predictable rear end with improved confidence when pushing on fast road and track.
Fitting service
Professional installation recommended. We offer fitting at Nforcd in Warwickshire. For a tailored quote, email Sales@nforcd.com.
Compatibility check
Before dispatch we verify fitment. Add your UK registration or last 7 digits of your VIN at checkout and we will confirm compatibility for your BMW M2, M3 or M4.
Photos and installation guide
Keywords and search terms
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