Powerflex Rear Diff Front Bush Insert for BMW F20 F21 1 Series - Yellow Road Series and Black Series
Upgrade your BMW 1 Series handling and traction with the Powerflex Rear Differential Front Bush Insert for F20 and F21 chassis. This high-performance polyurethane insert fits into the original rubber bush to fill the voids and stabilise the rear diff under acceleration. The result is a more planted rear end, crisper throttle response and reduced drivetrain movement on fast road and performance driving.
Ideal for enthusiasts seeking a proven suspension upgrade, this rear diff front bush insert is available in Yellow Road Series for daily and fast road use, and Black Series for more focused builds. We use and recommend this part on F20 and F21 cars, and our customers love the sharper, more connected feel it delivers.
Key Features
- Direct-fit polyurethane insert that fills the voids in the original bush to stabilise the differential
- Improves traction, reduces wheel hop and limits unwanted drivetrain movement
- Enhances handling precision and rear axle stability on fast road and performance driving
- Durable Powerflex polyurethane for long-lasting performance compared to ageing OEM rubber
- Available in Yellow Road Series and Black Series options to suit your build
- Supplied as a pack of 2 inserts
Compatibility and Reference
- Vehicle fitment: BMW 1 Series F20 and F21
- Location: Rear differential front bush insert
- Diagram reference: 27
- Replaces OEM bush part number: 33316792513
Why Choose Powerflex Bushes for Your BMW F20 F21
Powerflex polybushes are designed to control unwanted suspension flex, delivering better chassis response, improved tyre contact and increased confidence. This rear differential bush insert upgrade is a popular choice for BMW 1 Series owners seeking a simple, effective improvement in stability and drivability without replacing the entire bush housing.
Road Series or Black Series
- Yellow Road Series: Perfect for daily and fast road use
- Black Series: For more focused performance builds
Fitting and Support
Professional fitting recommended. Nforcd offers installation in Warwickshire. Request a quote at Sales@nforcd.com.
What You Get
- 2 x Powerflex rear diff front bush inserts for BMW F20 F21 1 Series
- Installation guidance from our experienced team on request
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