Eibach ERS 4.00-Inch Coil-Over Race Spring, 2.25-Inch Inside Diameter, 1,250 lb/in Rate

Eibach's ERS line has evolved over the years to be the world's most prominent, comprehensive and superior Race Spring System. Eibach Race Springs are all manufactured in series production, often repeated, with a strong manufacturing experience. Thus, Eibach constantly achieves the most linear spring characteristic (rate) while maintaining the lowest tolerances and the highest quality in the industry.

The Eibach ERS 0400.225.1250 is a professional-grade coil-over race spring engineered for consistent performance in demanding motorsports applications. Designed with a 4.00-inch free length, 2.25-inch inside diameter, and 1,250 lb/in spring rate, this spring supports precise suspension tuning where predictable response and repeatable handling are essential.

Eibach ERS springs are manufactured in series production using tightly controlled processes and extensive spring-manufacturing expertise. This approach helps deliver a highly linear spring characteristic, low production tolerances, and dependable quality from spring to spring. The result is a race spring that allows suspension builders and drivers to make accurate setup changes with confidence.

Built for compatible coil-over suspension systems, the Eibach ERS race spring is suited to competition vehicles and performance-focused applications requiring a high spring rate. Its compact coil-over format makes it a practical choice for custom suspension tuning, while the clearly defined rate supports repeatable setup development. Verify spring diameter, free length, rate, and suspension compatibility before installation.

What's Included: One Eibach ERS coil-over race spring.

Fitment: Universal motorsports and custom coil-over applications when the specified spring dimensions and rate match the suspension system. Vehicle-specific fitment data was not provided.

Features:

• Race-Engineered Performance: Developed for demanding motorsports and high-performance coil-over suspension applications.
• Linear Spring Characteristic: Manufactured to provide predictable, consistent spring response throughout suspension travel.
• High Spring Rate: The 1,250 lb/in rate supports applications requiring firm suspension control and precise tuning.
• Consistent Manufacturing Quality: Series production and controlled tolerances help deliver repeatable performance between springs.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false