SKU: 0800.250.0300S | UPC: 803050304650
Eibach ERS 8.00 in. Length x 2.50 in. ID Coil-Over Spring – 300 lb/in Rate
The Eibach ERS 8.00 in. length x 2.50 in. ID coil-over spring delivers a 300 lb/in rate for responsive handling in high-performance setups. This universal spring fits most coil-over shocks with 2.5 in. inner diameter bodies, ideal for drag racing, road racing, and autocross applications. Engineered for consistent performance under extreme loads.
Key Features
- 300 lb/in Spring Rate: Provides firm damping control and quick response for precise cornering and launch stability.
- 8.00 in. Free Length: Allows proper ride height adjustment in compact strut or shock assemblies.
- 2.50 in. Inner Diameter: Direct fit for standard 2.5 in. coil-over shock tubes from brands like QA1, Strange, and Bilstein.
- Chrome Silicon Steel: High-tensile material resists fatigue for long service life in racing conditions.
- Shot-Peened & Ground Ends: Preset, stress-relieved construction with square, flat ends ensures even seating and load distribution.
Product Notes
- Spring rate measured linearly; verify compression travel for your setup.
- Regular inspection advised for track use to maintain performance.
- Single spring ships wrapped for protection.
Installation Notes
- Professional installation recommended.
- Match shock body ID to 2.50 in.; use compatible spring perches and retainers.
- Torque hardware to manufacturer specs; check alignment post-install.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Coilover Shocks | 2.5″ ID Body |
Why Choose Eibach?
- Proven track record in NHRA, NASA, and SCCA racing series.
- Maintains rate consistency over thousands of cycles.
- Precision-wound in the USA with tolerances under 1%.
Frequently Asked Questions
- Q: Does this fit my 2.5 in. coilover shock?
A: Yes, designed for standard 2.50 in. ID shock bodies; confirm perch compatibility for QA1, AFCO, or similar. - Q: What material and finish?
A: High-tensile chrome silicon steel, shot-peened, heat-treated, and powder-coated silver for corrosion resistance. - Q: What warranty coverage?
A: Limited lifetime warranty against manufacturing defects when used in approved applications.
Shipping & Handling
- Method: UPS Ground / USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Protective box, 9 in. x 9 in. x 4 in.
- Weight: 5.8 lbs





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