Handling Upgrades for the E39 M5: Coilovers, Sway Bars, and Bushings

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The BMW E39 M5 is celebrated for its performance and handling, but many enthusiasts seek to enhance its capabilities further. Upgrading the suspension system is a popular route to improve handling, responsiveness, and overall driving experience. In this article, we will explore three critical components of handling upgrades: coilovers, sway bars, and bushings.

Coilovers

Coilovers are a popular suspension upgrade for the E39 M5. They combine the spring and shock absorber into a single unit, allowing for more precise tuning of ride height and damping characteristics. Here are some key benefits of installing coilovers:

  • Adjustability: Coilovers allow for ride height adjustment, enabling drivers to lower their vehicle for improved aesthetics and handling.
  • Improved Handling: Enhanced damping control can lead to better cornering stability and reduced body roll.
  • Customization: Many coilover kits offer adjustable settings for rebound and compression, allowing drivers to tailor their suspension to their driving style.

Choosing the Right Coilovers

When selecting coilovers for the E39 M5, consider the following factors:

  • Brand Reputation: Look for reputable brands known for quality and performance.
  • Spring Rates: Choose spring rates that match your driving style, whether for daily driving or track use.
  • Installation: Ensure that the coilovers come with all necessary hardware and instructions for proper installation.

Sway Bars

Sway bars, or anti-roll bars, are essential for reducing body roll during cornering. Upgrading the sway bars on the E39 M5 can significantly enhance its handling characteristics. Here are some advantages of sway bar upgrades:

  • Reduced Body Roll: Thicker sway bars help keep the vehicle level during turns, improving stability.
  • Improved Cornering: Enhanced sway bars allow for better traction and control through corners.
  • Adjustability: Some aftermarket sway bars offer adjustable settings, allowing drivers to fine-tune their handling dynamics.

Selecting Sway Bars

When choosing sway bars for the E39 M5, keep the following in mind:

  • Material: Look for sway bars made from high-quality materials like steel or aluminum for durability.
  • Diameter: A larger diameter typically provides more stiffness, which can enhance handling.
  • Compatibility: Ensure the sway bars are specifically designed for the E39 M5 to guarantee proper fitment.

Bushings

Bushings are often overlooked but play a crucial role in a vehicle’s suspension system. Upgrading the bushings on the E39 M5 can lead to improved handling and ride quality. Here’s why bushings matter:

  • Enhanced Stability: New bushings can reduce play in the suspension components, leading to better stability and control.
  • Improved Feedback: Upgraded bushings can provide more feedback to the driver, enhancing the overall driving experience.
  • Durability: High-performance bushings are often made from materials that resist wear and tear, extending their lifespan.

Types of Bushings

There are several types of bushings available for the E39 M5:

  • Rubber Bushings: These are the stock options and provide a comfortable ride but may wear out over time.
  • Polyurethane Bushings: These offer better performance and durability compared to rubber, making them a popular choice for enthusiasts.
  • Solid Bushings: These provide the most direct connection between suspension components but can lead to a harsher ride.

Conclusion

Upgrading the suspension components of the E39 M5, including coilovers, sway bars, and bushings, can significantly enhance its handling and overall driving experience. By carefully selecting the right components and ensuring proper installation, enthusiasts can enjoy improved performance on both the street and the track. Whether you’re looking for a more aggressive stance or better cornering capabilities, these upgrades can help you achieve your goals.