Powerflex Black Series Front Radius Arm To Chassis Bush | BMW F8X M2 / M3 / M4

Upgrade front-end response and suspension control with the Powerflex Black Series Front Radius Arm To Chassis Bush, designed for BMW F8X M applications requiring greater stiffness and more precise suspension movement under increased load.

The factory rubber bush allows a degree of movement as it deflects under braking, cornering and acceleration. As the original rubber ages, this movement can increase further, reducing consistency in suspension geometry and affecting steering response, braking stability and tyre control.

Powerflex replaces the factory rubber bush with a high-performance polyurethane design engineered for greater durability and improved suspension control.

Black Series Performance

This version uses Powerflex Black Series material, developed for performance-focused and motorsport applications where maximum control and reduced suspension movement are priorities.

Powerflex states that this bush provides approximately 18% greater stiffness than the original component, helping the radius arm resist the increased loads generated during aggressive driving.

The firmer construction helps maintain more consistent suspension geometry under load, particularly during hard braking and cornering.

Improved Front-End Control

By reducing unwanted bush deflection, the Powerflex Radius Arm Bush can provide:

• More precise steering response
• Improved braking stability
• More consistent suspension geometry
• Reduced unwanted suspension movement
• Greater front-end feedback
• Improved durability compared with ageing factory rubber bushes

This makes it particularly suited to modified, performance-oriented and track-driven F8X M cars.

Why Choose Powerflex?

Factory suspension bushes are manufactured from rubber compounds designed to balance comfort, cost and durability. Over time, heat, age and repeated loading can cause the rubber to soften and deteriorate.

Powerflex polyurethane bushes are designed to provide greater control of suspension components while offering significantly improved resistance to wear and deformation.

Key benefits include:

• Precision-engineered polyurethane construction
• Increased suspension control
• Improved steering and chassis response
• Greater durability than conventional rubber bushes
• Reduced geometry movement under load
• Suitable for performance and motorsport applications
• Powerflex Lifetime Warranty, subject to Powerflex warranty terms

Vehicle Compatibility

Suitable for:

• BMW F87 M2
• BMW F87 M2 Competition
• BMW F80 M3
• BMW F82 M4
• BMW F83 M4 Convertible

Powerflex officially lists PFF5-4001BLK against the F87 M2, F80 M3 and F82/F83 M4 platforms.

Important Information

This product is intended for performance use and should be installed by a qualified professional.

It is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.

Gridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.

Due to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.