Powerflex Front Sway Bar Bushings - 28mm - Street - E65, E66, E60, E61

Product Details

In a motorsport environment, controlling body roll and maximizing the tire contact patch during high-speed cornering is paramount. On the larger BMW chassis, the front anti-roll bar (ARB) is highly leveraged. Factory rubber bushings are designed for occupant comfort, introducing a compliance threshold that allows the sway bar to deflect within its mount before it begins to load and counter body roll. This deflection results in a delayed turn-in response, mid-corner geometry migration, and reduced front-end mechanical grip.

The Powerflex Black Series is a track-focused upgrade engineered to eliminate this compliance. Manufactured from a rigid 95 Shore A durometer polyurethane compound, these 28mm front sway bar bushings ensure immediate, uncompromised load transfer across the front axle. For dedicated race, track-day, or tarmac rally applications, this component locks down chassis roll geometry and stabilizes the front track width under heavy lateral G-loads.

Performance Characteristics

• 95 Shore A Motorsport Compound: Powerflex's hardest polyurethane matrix, delivering an approximate 80% increase in stiffness over original equipment. It effectively eliminates independent bushing deflection without the binding risk or rapid wear of uniball/metallic spherical bearings.

• Instantaneous Turn-In Response: By forcing the 28mm sway bar to activate the moment steering input is initiated, transient response times are significantly minimized, yielding a highly communicative and sharp front axle.

• Chassis Geometry Consistency: Restricts dynamic alignment changes during heavy braking and maximum cornering loads, preserving the engineered slip angle of the front tires.

• Advanced Tribological Design: Features specialized internal knurling and micro-grooves designed to capture and retain low-friction grease. This guarantees smooth rotational articulation of the bar while eliminating high-stress stiction.

Prop 65 Warning

Product Q&A

Lifetime Replacement

Fits These Cars