H&R Sport Spring Kit

2004–2010 BMW 525Xi Sedan / 530Xi Sedan / 535Xi Sedan E60

Part #: 29146-1

Overview

The H&R Sport Spring Kit is designed to enhance the handling and appearance of your BMW E60 series sedans, including the 525Xi, 530Xi, and 535Xi models from 2004 to 2010. Crafted with precision engineering and high-quality materials, these springs deliver a sportier stance and improved responsiveness without sacrificing ride comfort. Whether you're a spirited driver seeking better cornering or an enthusiast looking to give your vehicle a more aggressive look, this spring kit offers a perfect balance of performance and everyday usability.

Manufactured in Germany at H&R's ISO 9001 certified facility, each spring is made from a specially formulated 54SiCr6 spring steel, which boasts an impressive tensile strength of 290,000 psi. This ensures durability, resilience, and consistent performance over time. The result is a suspension upgrade that supports your driving style while maintaining reliability and comfort for daily driving.

Key Features

The H&R Sport Spring Kit is engineered to improve your BMW's handling characteristics and visual appeal. Here are some of its standout features:

• Manufactured from high-grade 54SiCr6 spring steel, providing exceptional strength and resilience for long-lasting performance.
• Designed to lower the vehicle's ride height, giving your BMW a more aggressive stance and improved aerodynamics.
• Optimized spring rates that enhance handling response and reduce body roll during spirited driving, without the harshness associated with lesser spring systems.
• Precision-engineered to maintain a comfortable ride quality suitable for daily driving, even with the lowered stance.
• Produced in Germany at H&R's ISO 9001 certified facility, ensuring strict quality control and manufacturing excellence.
• Compatible with OEM suspension components, making installation straightforward for enthusiasts and professional installers alike.
• Supports improved cornering, stability, and overall driving dynamics, elevating your driving experience.
• Offers an aggressive look that complements the vehicle's design, enhancing curb appeal.
• Designed specifically for the BMW E60 chassis, ensuring a perfect fit and optimal performance.

Construction & Design

The H&R Sport Springs are crafted from a proprietary 54SiCr6 spring steel, known for its high tensile strength and durability. Each spring is precision wound and heat-treated to ensure consistent spring rates and longevity. The springs feature a progressive design that provides a comfortable ride during normal driving conditions while offering increased stiffness during aggressive maneuvers. The lowered ride height not only improves aesthetics but also reduces the center of gravity, contributing to enhanced handling and stability.

The springs are engineered to work seamlessly with your vehicle's existing suspension components, ensuring a direct bolt-on installation. Their high-quality construction and meticulous design result in a suspension upgrade that balances performance, comfort, and durability, making them ideal for enthusiasts who want a sporty look and improved handling without sacrificing everyday ride quality.

Performance & Sound

While the primary focus of the H&R Sport Spring Kit is handling and appearance, users can expect noticeable improvements in cornering response and overall vehicle stability. The springs help reduce body roll and improve steering feedback, making your BMW feel more agile and connected to the road. Although these springs do not significantly alter exhaust sound or produce additional noise, the lowered stance can give your vehicle a more aggressive and commanding presence.

Installation & Fitment

The H&R Sport Spring Kit is designed as a direct bolt-on upgrade for your BMW E60 series sedan. Installation typically requires basic suspension tools and can be completed by experienced DIY enthusiasts or professional technicians. No cutting, drilling, or complex modifications are necessary. It is recommended to perform a wheel alignment after installation to ensure optimal handling and tire wear.

• Easy, bolt-on installation using factory mounting points
• No cutting or drilling required
• Compatible with OEM suspension components
• Supports a lowered stance for improved handling and aesthetics

What's Included

• Set of four high-quality H&R Sport Springs
• Installation instructions

Ideal For

• BMW enthusiasts seeking improved handling and a sportier appearance
• Daily drivers who want a balance of comfort and performance
• Performance-oriented drivers looking to reduce body roll and enhance cornering
• Owners of BMW E60 series sedans from 2004 to 2010

Emissions Note

This product is designed to meet or exceed OEM specifications and is suitable for street use. However, always verify local regulations regarding suspension modifications to ensure compliance.