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

The Powerflex PFF5-4655BLK Transmission Mounting Bush is a full Motorsport-spec polyurethane upgrade for BMW F2X/F3X M-Lites and F8X M-cars. Designed for maximum stiffness and drivetrain control, this mount dramatically reduces gearbox movement under load, delivering ultra-sharp shifts, improved throttle response and enhanced stability during aggressive driving and track use.

SKU: PFF5-4655BLK
Position: Transmission Mount
Application: Motorsport / Extreme Performance

Key Features

Black Series Motorsport Polyurethane

– Hardest compound available from Powerflex
– Zero-flex design for maximum drivetrain control
– Engineered for track, drift and high-power applications

Ultra-Precise Shifting

– Eliminates transmission movement under torque
– Provides crisp, direct shift engagement
– Perfect for hard braking zones and high-speed corner entries

Maximum Drivetrain Stability

– Keeps gearbox aligned during extreme load changes
– Improves throttle response and power delivery
– Reduces wheel-hop and driveline shock

Built for Extreme Conditions

– Resistant to heat, oil and vibration
– Long-lasting stiffness under motorsport abuse
– Ideal for upgraded turbos, big power builds and slick-tyre setups

Benefits

The PFF5-4655BLK mount transforms the BMW driveline for motorsport environments. Shifts become razor-sharp, the rear end stays planted under power and the entire drivetrain feels far more connected. This is the go-to transmission mount for serious track cars and high-power F2X/F3X and F8X builds.

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: PFF5-4655BLK
Position: Transmission Mount

Installation Notes

– Direct replacement for OEM mount
– NVH increase expected due to extreme stiffness
– Professional installation highly recommended
– Ideal when combined with diff/subframe Black Series bushes

About Powerflex

Powerflex Black Series components are engineered for dedicated motorsport use. Offering maximum rigidity, precision and durability under extreme forces, they are the benchmark for serious BMW performance builds.