Eibach 0700.225.0350 ERS 350 lb Coilover Main Spring 2.25in ID x 7in

Vehicle Fitment

• Universal application - designed for use with compatible coilover suspension systems
• Not specific to any single vehicle make/model

Features

• ERS linear main coilover spring engineered for performance suspension tuning
• 350 lbs/in spring rate for balanced support and compliance
• Precision-formed spring steel construction for durability
• Red powder-coat finish for corrosion resistance
• Maximum travel with relatively low block height
• Individually tested for rate consistency and quality
• Reduced unsprung mass for better handling feel
• Ideal for custom coilover builds, street, or track suspension tuning

Specifications

• Part Number: 0700.225.0350
• Type: ERS linear main coilover spring
• Spring Rate: 350 lbs/in
• Inside Diameter: 2.25 in (57 mm)
• Free Length: 7.00 in (178 mm)
• Block Height: ~2.68 in
• Travel: ~4.32 in
• Load at Block Height: ~1,513 lbs
• Weight: ~1.81 lbs

Included Components

• 1x Eibach ERS 350 lb/in main coilover spring

Product Description

The Eibach 0700.225.0350 ERS main coilover spring is a professional-grade performance suspension component designed for custom coilover systems where precise spring rate and reliable behavior are essential. With a **350 lbs per inch** linear rate and a **2.25 in inside diameter**, this spring offers a balanced combination of support and compliance, making it suitable for both spirited street driving and performance-focused track use.

Constructed from precision-formed spring steel and finished with Eibach's signature red powder coat, the 0700.225.0350 provides generous travel while maintaining a relatively low block height to help tighten suspension response. Its **7.00 in free length** and consistent performance make it ideal for custom suspension tuning in compatible coilover shock assemblies. Because this part is universal and not tied to a specific vehicle, confirm compatibility with your coilover shocks and hardware before installation for optimal results.