Powerflex Black Series Rear Subframe Front Mounting Bush - BMW 1 Series, 2 Series, 3 Series, 4 Series - PFR5-420BLK
Upgrade your BMW handling with the Powerflex Black Series PFR5-420BLK rear subframe front mounting bush. Designed for track and race use, this 95 Shore A polyurethane bush delivers maximum control of chassis geometry, sharper turn in and more consistent grip under load. Ideal for drivers who want a precise, durable and performance-focused subframe bush upgrade for BMW 1 Series, 2 Series, 3 Series and 4 Series models including E81, E82, E87, E88, F20, F21, F22, F23, E90, E91, E92, E93, F30, F31, F32, F33 and F36.
This is a full replacement bush that replaces the soft factory rubber bush to reduce unwanted subframe movement and improve stability, traction and braking performance. Powerflex Black Series bushes are engineered for motorsport, offering a firmer, more responsive feel for serious fast road and circuit use while resisting oil, road grime and extreme temperatures. We have fitted these bushes on our own cars and for many customers, and the feedback is consistently positive regarding steering precision and confidence on track.
Key features
- Powerflex Black Series 95 Shore A compound for track and race performance
- Rear subframe front mounting bush upgrade for BMW platforms listed below
- Reduces subframe movement for improved handling, stability and traction
- Maintains chassis alignment under hard acceleration, braking and cornering
- Durable polyurethane construction resists wear, oil and contamination
- Full replacement bush for a direct and repeatable fit
- Trusted by enthusiasts and track-day drivers looking for a precise suspension upgrade
What is included
- 2 x bushes - you will require 2 bushes per car and this kit supplies both
Fits the following BMW models
- BMW 1 Series
- E81, E82, E87, E88 2004 to 2013
- F20, F21 2011 to 2019
- BMW 2 Series
- F22, F23 2013 onwards
- BMW 3 Series
- E90, E91, E92, E93
- F30, F31 2011 onwards
- BMW 4 Series
- F32, F33, F36 2013 onwards
Part number
PFR5-420BLK
Replaces OEM part numbers
- 33316758259
- 33316792509
Why choose this Powerflex subframe bush for your BMW
If you are searching for BMW rear subframe bushes, BMW poly bushes, Powerflex Black Series bushes, BMW 1 Series subframe bush upgrade, BMW F20 rear subframe bush, BMW E90 subframe bush, BMW F30 subframe bush or polyurethane suspension bushes for track use, this PFR5-420BLK kit is the proven choice. It tightens the rear end, improves response and keeps alignment stable under load. Perfect for track days, fast road and motorsport-focused builds where precision matters.
Installation
Professional installation is recommended. For fitting in the UK, we can install these at Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Download the manufacturer installation guide: Powerflex PFR5-420 Black Series Install Guide
Compatibility check
We verify fitment before dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout to ensure the correct part for your BMW.
Manufactured by
Powerflex
Summary
Powerflex BMW rear subframe front mounting bush, PFR5-420BLK, is the go to track and race polyurethane bush upgrade for E81, E82, E87, E88, F20, F21, F22, F23, E90, E91, E92, E93, F30, F31, F32, F33 and F36. Choose this Black Series poly bush to enhance handling, improve chassis control and deliver consistent performance on road and track.