PFF5-4655P – Transmission Mounting Bush – M135i M140i M235i M240i M2 M3 M4

The Powerflex PFF5-4655P Transmission Mounting Bush is a track-spec polyurethane upgrade designed to reduce gearbox movement and sharpen drivetrain response on BMW F2X/F3X M-Lite models and F8X M-cars. This stiff mount delivers tighter gear shifts, improved throttle response and greater stability under high load — ideal for tuned, fast-road and track-driven cars.

SKU: PFF5-4655P
Position: Transmission Mount
Application: Track / Performance

Key Features

Track-Spec Polyurethane

– Stiffer than OEM rubber and Road Series mounts
– Designed for aggressive driving, high torque and circuit use
– Minimises transmission movement during acceleration and direction changes

Sharper Gear Shift Precision

– Reduces driveline slop
– Gives a more positive, direct gear shift feel
– Improves consistency during hard braking and cornering

Improved Drivetrain Control

– Keeps the transmission aligned under stress
– Enhances throttle response and power delivery
– Ideal for upgraded power levels and performance mapping

Long-Lasting Performance

– Resistant to heat, oil and drivetrain vibration
– Far more durable than factory mounts
– Maintains stiffness over time

Benefits

Upgrading to the PFF5-4655P mount provides a major improvement in drivetrain precision. Gear shifts become cleaner and more direct, rear-end stability improves and the whole car feels more controlled under load. A must-have for tuned M135i/M140i/M235i/M240i and F8X M2/M3/M4 track builds.

Fitment

Suitable for:
F2X/F3X Platform:
– BMW M135i (F20/F21)
– BMW M140i (F20/F21)
– BMW M235i (F22/F23)
– BMW M240i (F22/F23)

F8X Platform:
– BMW M2 (F87)
– BMW M3 (F80)
– BMW M4 (F82/F83)

SKU: PFF5-4655P
Position: Transmission Mount

Installation Notes

– Direct replacement for OEM mount
– Professional installation recommended
– NVH increase expected due to motorsport stiffness
– Best paired with upgraded diff and subframe bushes

About Powerflex

Powerflex is a global leader in high-performance polyurethane components. Their motorsport-grade mounts offer superior stiffness and driveline control, making them ideal for high-power, track-ready BMW builds.