Eibach ERS 20.00-Inch Coilover Spring, 3.75-Inch Inside Diameter, 650 lb/in Rate – EIB2000.375.0650S

Renowned for our extensive catalog of over 1,500 precision engineered race springs. Eibach race springs offer unparalled customization and performance optimization across a wide spectrum of racing applications. From shocks to pull-bars we offer a wide range of springs solutions to fine tune the handling dynamics of your race car. Individual Motorsport Spring

• Eibach 3.75" Inside Diameter Coilover Springs Available in a Full Range of Rates and Lengths
• Maximum Travel in Combination with Smallest Block Heights
• Legendary Eibach Off-Road Durability and Performance
• Highest Linearity and Guaranteed Consistency
• Each Spring Individually Tested

The Eibach ERS EIB2000.375.0650S is an individual motorsport coilover spring designed for race vehicles that require precise suspension tuning. With a 3.75-inch inside diameter, a 20.00-inch free length, and a 650 lb/in spring rate, this Eibach race spring helps drivers and suspension technicians optimize handling balance, ride control, and available suspension travel across a wide range of racing applications.

Engineered for demanding motorsport use, the Eibach ERS spring delivers high linearity and dependable consistency from one spring to the next. Its design supports maximum travel while maintaining a compact block height, helping suspension builders fine-tune vehicle dynamics without unnecessary compromise. Each spring is individually tested to help ensure reliable performance and predictable results during setup changes.

Built with Eibach’s renowned off-road durability and performance standards, this coilover spring is suitable for professional and enthusiast racing applications where repeatable suspension behavior is essential. The 650 lb/in rate provides a defined starting point for custom suspension calibration, though final suitability depends on vehicle weight, corner loading, shock valving, motion ratio, and track conditions. Confirm spring dimensions and rate compatibility with the complete coilover system before installation.

Key Product Specifications & Technical Data

• Brand: Eibach
• Part Number: EIB2000.375.0650S
• Product Type: Individual motorsport coilover spring
• Spring Series: ERS
• Inside Diameter: 3.75 inches
• Free Length: 20.00 inches
• Spring Rate: 650 lb/in
• Application: Racing and performance suspension systems

What’s Included

• One Eibach ERS coilover spring

Features:

• 3.75-inch inside diameter supports compatibility with matching motorsport coilover hardware.
• 650 lb/in spring rate helps provide precise control for custom race suspension tuning.
• 20.00-inch free length offers substantial suspension travel for demanding racing applications.
• High linearity and individually tested construction deliver consistent, predictable spring performance.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1