Cusco Rear Sway Bar

2012–Present BMW 3 Series F30 320i/328i/335i

Part #: BM7 311 B16

Overview

The Cusco 16mm Rear Sway Bar is a high-performance suspension upgrade designed specifically for the BMW 3 Series F30 models from 2012 onward, including the 320i, 328i, and 335i variants. This sway bar replaces the factory component (if equipped) and is engineered to significantly enhance your vehicle’s handling dynamics. Whether you're a spirited driver, a track enthusiast, or simply looking to improve your daily driving experience, this sway bar offers a reliable and effective solution to reduce body roll and improve cornering stability.

Constructed with precision and durability in mind, the Cusco rear sway bar helps keep your vehicle more level during aggressive turns, providing better grip and control. Its increased stiffness compared to the factory sway bar ensures that weight transfer during cornering is minimized, resulting in a more planted and confident driving feel. Plus, it does so without compromising ride comfort, maintaining a smooth and balanced ride quality for everyday use.

Key Features

The Cusco Rear Sway Bar is designed with performance and durability at the forefront, offering several key features that benefit both casual drivers and performance enthusiasts:

• Constructed from high-strength steel for excellent torsional resistance and long-lasting performance.
• 16mm diameter bar provides a significant upgrade over stock sway bars, offering increased stiffness for improved handling.
• Uses the factory mounting locations, ensuring a straightforward bolt-on installation without the need for modifications.
• Reduces body roll during cornering, enhancing vehicle stability and driver confidence.
• Helps support more precise steering response and reduced weight transfer, especially during spirited driving or track days.
• Designed to maintain ride comfort, balancing performance with everyday drivability.
• Finished with a durable coating to resist corrosion and maintain appearance over time.

Construction & Design

The Cusco rear sway bar is crafted from high-quality steel, ensuring strength and rigidity necessary for performance driving. Its 16mm diameter tube is carefully engineered to provide optimal torsional stiffness, effectively reducing body roll without making the ride harsh. The sway bar features a lightweight yet robust design, with precise CNC-machined end links and mounting brackets that ensure a perfect fit and reliable operation. The use of factory mounting points simplifies installation, allowing you to upgrade your suspension with minimal effort and no need for additional modifications.

Performance & Sound

By upgrading to the Cusco 16mm Rear Sway Bar, you'll notice a more responsive and stable vehicle during cornering. The increased resistance against torsion helps keep the body flatter, improving grip and reducing understeer or oversteer tendencies depending on your driving style. While this upgrade primarily enhances handling, it also contributes to a more confident and controlled driving experience. The sway bar operates silently, with no added noise or harshness, maintaining the comfort and refinement expected from your BMW.

Installation & Fitment

The Cusco Rear Sway Bar is designed for a direct bolt-on installation using the factory mounting locations. No cutting, drilling, or complex modifications are required, making it a straightforward upgrade for DIY enthusiasts or professional installers. The process typically involves removing the existing sway bar and replacing it with the Cusco unit, which can be completed in a few hours with basic tools. For optimal results, it is recommended to perform a wheel alignment after installation to ensure proper handling characteristics.

• Simple bolt-on installation using factory mounting points
• No cutting, drilling, or tuning required
• Compatible with 2012–present BMW 3 Series F30 models (320i, 328i, 335i)

What's Included

• Cusco 16mm Rear Sway Bar
• High-quality end links
• Mounting brackets and hardware
• Installation instructions

Ideal For

• BMW 3 Series F30 owners seeking improved handling and cornering stability
• Performance enthusiasts looking for a reliable suspension upgrade
• Daily drivers who want better body control without sacrificing ride comfort
• Track day participants aiming for more precise handling during spirited driving

Emissions Note

This product is designed for off-road or track use only and may not be legal for street use in all regions. Please check local regulations before installation.