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

The Powerflex PFF5-4655 Transmission Mounting Bush is a Fast Road polyurethane upgrade designed to reduce transmission movement and sharpen driveline response on BMW F2X/F3X M-Lites and F8X M-cars. Offering a perfect balance between comfort and control, this mount improves gear shift precision, stability and drivetrain feedback without the harsher NVH of track-spec bushes.

SKU: PFF5-4655
Position: Transmission Mount
Application: Fast Road / Performance

Key Features

Fast Road Polyurethane Construction

– Stiffer than OEM rubber for improved control
– Maintains near-OEM comfort levels
– Minimises transmission movement during spirited driving

Cleaner, More Positive Gear Shifts

– Reduces drivetrain slack
– Improves shift accuracy under braking and acceleration
– Makes the gearbox feel more connected and responsive

Improved Stability Under Load

– Keeps transmission aligned under torque
– Enhances throttle response and power delivery
– Ideal for Stage 1/2 cars and daily-driven performance builds

Designed for Real-World Performance

– Resistant to oil, heat and vibration
– Long-lasting upgrade over factory mounts
– Perfect middle ground between comfort and stiffness

Benefits

The PFF5-4655 mount offers a noticeable improvement in shift feel and driveline control, reducing the rubbery flex that softens the OEM mount. It tightens the entire drivetrain, giving the car a more precise, planted and responsive feel — ideal for fast-road M135i/M140i/M235i/M240i and F8X M2/M3/M4 owners.

Fitment

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: PFF5-4655
Position: Transmission Mount

Installation Notes

– Direct OEM replacement
– Professional installation recommended
– Slight NVH increase compared to stock
– Works best paired with diff and subframe inserts/bushes

About Powerflex

Powerflex Road Series and Fast Road components offer enhanced control, longevity and driving precision. They provide the ideal balance between comfort and performance for tuned daily-driven or fast-road BMW builds.