Powerflex Black Series Rear Subframe Front Bush Insert — BMW E46 and Z4 Upgrade
Transform rear-end precision and stability with the Powerflex Black Series Rear Subframe Front Bush Insert. Engineered for track, race and rally, this motorsport-grade polyurethane insert uses a 95 Shore compound to maximise control of chassis geometry and reduce unwanted subframe movement. If you want a sharper handling BMW with improved traction and confidence under hard cornering and acceleration, this is the go-to subframe bush upgrade.
We have fitted these inserts on our own builds and customer cars, and the feedback is consistently excellent. Expect tighter rear-end response, more consistent alignment under load and a more connected feel without compromising everyday usability.
Why choose Powerflex Black Series for your BMW?
- 95 Shore Black Series compound for maximum control on track, race, drift and fast-road use
- Insert design fits into the voids of the factory rubber bush to limit movement and improve geometry control
- Sharper turn-in, improved stability and more predictable handling
- Durable polyurethane construction designed for serious performance driving
- Quick, cost-effective upgrade versus replacing full subframe bushes
What it replaces
Fits into the voids of the original rear subframe front bush.
OEM cross-references:
- 33316770783
- 33316770784
Compatibility
Designed for the following BMW models:
- BMW E46 Compact
- BMW E46 Saloon, Touring, Coupe, Convertible
- BMW E46 xi/xd (4WD)
- BMW Z4 E85 and E86 2003–2009
- BMW Z4 E89
- BMW X3
Exclusions: E46 M3 and Z4M.
Part number
PFR5-4614BLK
What’s in the box
- 2 x bush inserts
You require 2 inserts per car.
Diagram reference
Reference No. 10
Installation
Professional fitting recommended. We can install this at Nforcd in Warwickshire. Request a fitting quote: Sales@nforcd.com
Compatibility check before dispatch
We verify fitment before shipping. Provide your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility for your BMW.
Manufacturer
Powerflex
SEO and keywords
Powerflex Black Series BMW rear subframe front bush insert. PFR5-4614BLK. BMW E46 rear subframe bush insert. BMW Z4 E85 E86 E89 subframe bush upgrade. Polyurethane subframe bush insert 95 Shore. Track, race, drift, fast-road BMW handling upgrade. Fits BMW E46 Compact, Saloon, Touring, Coupe, Convertible, xi, xd, Z4 E85 E86 E89, X3. Replaces OEM 33316770783 and 33316770784. Powerflex rear subframe bush insert for BMW E46 and BMW Z4. Performance bush insert for sharper handling and improved chassis control.