BC Racing ER Series Coilover

Fits 2007–2013 BMW E9X M3

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Overview

The BC Racing ER Series coilover is a high-performance suspension upgrade designed specifically for the BMW E9X M3 model years 2007 through 2013. Engineered for enthusiasts seeking superior handling, adjustable ride height, and enhanced driving dynamics, these coilovers provide a significant upgrade over stock suspension components. The ER Series features large external reservoirs, which help dissipate heat more effectively, ensuring consistent performance during spirited driving or track sessions. With separate rebound and compression adjustments, you gain precise control over your vehicle’s handling characteristics, allowing you to tailor the ride to your preferences and driving conditions. Crafted with durability and performance in mind, these coilovers are ideal for street and track use, offering a blend of comfort, responsiveness, and reliability.

Key Features

Designed with advanced engineering, the BC Racing ER Series coilovers incorporate high-quality materials and innovative design elements to optimize your vehicle’s suspension performance. Key features include:

• Large external reservoirs for increased oil capacity and improved cooling
• Separate rebound and compression damping adjustments for precise tuning
• Twin piston design to enhance response and stability
• Adjustable ride height to customize stance and handling
• Durable construction with corrosion-resistant components
• Compatible with non-electronic damper control systems

Construction & Design

The coilovers feature a twin piston design housed within robust external reservoirs, which displace a higher volume of oil to maintain optimal operating temperatures. The external reservoirs are connected via high-pressure hoses, ensuring consistent damping performance. The components are machined from high-grade steel and finished with corrosion-resistant coatings, providing longevity and resistance to harsh driving conditions. The adjustable collars and threaded bodies allow for easy ride height customization, enabling you to fine-tune your vehicle’s stance and handling.

Driving Feel & Feedback

These coilovers are designed to deliver a responsive and engaging driving experience. The separate rebound and compression adjustments allow for tailored damping settings, resulting in improved handling, reduced body roll, and enhanced stability during aggressive cornering. The twin piston design ensures quick response and precise feedback, making your vehicle more predictable and confident on the road or track.

Installation & Fitment

Installation requires basic suspension tools and is recommended for those with moderate mechanical experience. Proper alignment after installation is advised to maximize performance and tire wear. The coilovers are engineered to bolt directly onto the BMW E9X M3 chassis, ensuring a secure fit and reliable operation.

What’s Included

The package includes a complete set of front and rear coilover assemblies, along with all necessary hardware for installation.