PFF5-4001 – Front Radius Arm Bush – M2 M3 M4

The Powerflex PFF5-4001 Front Radius Arm to Chassis Bush is a Fast Road polyurethane upgrade designed for the BMW F8X platform — covering the M2, M3 and M4. This bush replaces the soft OEM rubber unit to reduce unwanted front suspension movement, improving steering feel, braking stability and cornering precision while maintaining good road comfort.

SKU: PFF5-4001
Position: Front Radius Arm → Chassis Bush
Application: Fast Road / Performance
Fitment: F8X ONLY (M2, M3, M4)

Key Features

Fast Road Polyurethane

– Stiffer than OEM rubber but still daily-friendly
– Reduces arm flex under braking and cornering
– Supports sharper, more predictable handling

Improved Steering Response

– More direct steering feel
– Reduced delay when turning in
– Gives the front end a tighter, more controlled feel

Better High-Load Stability

– Keeps geometry stable during hard braking
– Improves tyre contact and front-end grip
– Enhances consistency on fast road and light track use

Long-Life Performance Construction

– Resistant to oil, heat and road contaminants
– Longer-lasting than factory rubber bushes
– Suitable for tuned and spirited-driven F8X cars

Benefits

The PFF5-4001 bush noticeably sharpens the F8X’s front-end behaviour without the harsher NVH of Black Series versions. Steering becomes more precise, cornering more stable and braking more confidence-inspiring — ideal for fast-road M2/M3/M4 owners wanting improved control without committing to motorsport stiffness.

Fitment

BMW M-Cars (F8X):
– BMW M2 (F87 – non-Comp + Comp)
– BMW M3 (F80)
– BMW M4 (F82/F83)

SKU: PFF5-4001
Position: Front Radius Arm → Chassis Bush
Fits: F8X ONLY

Installation Notes

– Requires pressing of the OEM bush
– Wheel alignment recommended after installation
– Mild NVH increase vs OEM
– Professional fitment advised

About Powerflex

Powerflex Road Series bushes deliver improved longevity, stiffness and handling precision while maintaining the comfort expected from a daily-driven car. Perfect for F8X owners wanting a sharper, more responsive front end without going full motorsport.