Eibach ERS 4.00 in. Length x 2.25 in. ID Coil-Over Race Spring, 3400 lb/in

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 0400.225.3400 is a professional-grade coil-over race spring designed for motorsports applications that demand consistent performance, precise suspension tuning, and dependable durability. As part of Eibach’s ERS line, this spring is manufactured in repeated series production using extensive spring-design and manufacturing expertise.

Eibach Race Springs are engineered to deliver a highly linear spring rate with tight production tolerances. This predictable behavior helps suspension builders and race teams make accurate setup changes while maintaining consistent vehicle response during demanding driving conditions. The coil-over format is suitable for compatible competition suspension systems and custom chassis applications where spring-rate optimization is required.

With a 3400 lb/in spring rate, this Eibach ERS spring is intended for specialized racing and high-load suspension configurations. Its compact race-spring design supports precise packaging within compatible coil-over assemblies. Verify the required spring length, inside diameter, rate, and suspension fitment before installation. This automotive component is not identified as emissions-regulated and is not intended to be treated as a universal direct-fit replacement without confirming application requirements.

What's Included: One Eibach ERS coil-over race spring. Spring seats, adjusters, helper springs, retainers, and installation hardware are not included unless specifically supplied with the compatible suspension system.

Features:

• Race-proven ERS design: Part of Eibach’s professional ERS Race Spring System for motorsports and performance suspension applications.
• Linear spring behavior: Manufactured to provide a predictable spring rate for accurate suspension tuning and consistent vehicle response.
• 3400 lb/in spring rate: Provides high-load support for specialized competition and custom coil-over suspension configurations.
• Tight manufacturing tolerances: Series production and Eibach manufacturing expertise support repeatable quality and dependable performance.

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