PFR5-420BLK – Rear Subframe Front Mounting Bush (Track/Msport) – M135i M140i M235i M240i

The Powerflex Black Series Rear Subframe Front Bush delivers maximum stiffness and subframe control for track-driven or heavily modified F2X/F3X M-Lites. Designed for motorsport use, it eliminates subframe movement under load.

Fitment: BMW F20/F21/F22/F23 – M135i, M140i, M235i, M240i
SKU: PFR5-420BLK

Key Features

Black Series Motorsport Compound

– Hardest polyurethane available
– Zero-flex design for race use
– Extreme durability under load and heat

Maximum Subframe Stability

– Eliminates movement under acceleration and cornering
– Improves precision and chassis response

OEM Replacement Fit

– Direct press-in bush
– No custom fabrication required

Benefits

– Track-ready handling
– Sharper, more predictable rear-end behaviour
– Improved confidence under hard driving

Fitment

– F20/F21 M135i/M140i
– F22/F23 M235i/M240i
SKU: PFR5-420BLK

Installation Notes

– Requires pressing
– Recommended: professional installation

About Powerflex

Powerflex’s Black Series range is engineered specifically for race and track use, providing maximum stiffness, chassis control and durability for high-performance builds.