Powerflex Rear Subframe Rear Bushes Insert for BMW 4 Series F32 F33 F36 – PFR5-1921
Upgrade your BMW 4 Series handling and stability with the Powerflex Rear Subframe Rear Bushes Insert PFR5-1921. Designed for the BMW F32, F33 and F36 4 Series, this rear subframe bush insert fits into the voids of the original bush to reduce subframe movement, sharpen response and improve chassis control on the road and fast road. If you are searching for BMW 4 Series rear subframe bush inserts, BMW F32 F33 F36 rear subframe bushes, or Powerflex PFR5-1921, this is the performance suspension upgrade you want for tighter handling, improved traction and consistent geometry.
Why choose Powerflex PFR5-1921 for your BMW 4 Series?
- Reduce subframe movement for more precise handling and steering feel.
- Improve road holding, rear-end stability and cornering confidence.
- Enhance chassis performance for road and fast road driving.
- Prolong tyre life by controlling unwanted suspension flex.
- Increase safety and driving consistency under acceleration and braking.
- Cost-effective suspension upgrade that retains your original bush.
This insert installs into the existing OEM rear subframe bush, retaining the factory bush while controlling flex. The result is a focused, responsive rear end without the cost and complexity of full bush replacement. We use Powerflex on our own builds and customer cars, and feedback has been excellent for the F32, F33 and F36 platforms.
Fitment and key details
- Vehicle compatibility: BMW 4 Series F32, F33, F36
- Location: Rear Subframe Rear Bushes Insert
- Part number: PFR5-1921
- Diagram reference: 21
- Series: Road Series
- Use: Road and fast road
- Number of inserts in pack: 2
- Replaces OEM bush part number: 33316792510
Who is this for?
Ideal for BMW 4 Series drivers who want a simple, proven upgrade for better rear subframe control without sacrificing everyday usability. Perfect search terms include BMW F32 rear subframe bush insert, BMW F33 rear subframe bushing upgrade, BMW F36 rear subframe bush inserts, Powerflex rear subframe insert, and PFR5-1921.
Fitting and support
Professional fitting is recommended. For expert installation and setup, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Why buy from Nforcd?
We specialise in performance car parts and BMW suspension upgrades, and we have extensive hands-on experience with Powerflex bush inserts for the BMW 4 Series. Our customers consistently report sharper handling, better stability and improved confidence after fitting PFR5-1921.
Keywords for search: BMW 4 Series rear subframe bush insert, BMW F32 F33 F36 rear subframe bushes, BMW 4 Series suspension upgrade, Powerflex rear subframe insert PFR5-1921, BMW rear subframe bushing, fast road suspension, BMW 4 Series handling upgrade, performance bush inserts.