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SKU: 0700.250.0500 | UPC: 803050106544
Eibach ERS 7.00 inch L x 2.50 inch dia x 500 lbs Coil Over Spring - Universal Coilover Fit
This Eibach ERS coilover spring measures 7.00 inches in length with a 2.50 inch diameter and 500 lbs per inch rate, designed for custom coilover shock assemblies in street, drag, and road race vehicles. It fits most coilover systems requiring these exact dimensions, including popular setups from QA1, AFCO, and Bilstein. The 500 lb rate delivers firm response for better cornering grip and reduced body roll during aggressive driving.
Key Features
- Exact Dimensions: 7.00 in. free length, 2.50 in. mean diameter, 0.750 in. wire diameter, 1.75 in. block height, 1050 lbs max load for reliable fit in compact coilover housings.
- 500 lbs/in Rate: Provides consistent progressive response to maintain tire contact and chassis stability under high lateral loads.
- Chrome Silicon Steel: High-tensile material resists fatigue in demanding race conditions for extended spring life.
- Shot Peened & Heat Treated: Increases surface strength and relieves stress for repeated high-cycle durability without sagging.
- Silver Powder Coat Finish: Protects against corrosion and simplifies cleaning after track sessions.
Product Notes
- Precision tolerances: load within 5%, rate within 2%, ID/OD held to 0.015 in. for repeatable performance.
- Store in dry conditions to preserve powder coat; inspect ends for squareness before install.
- Ships standard ground; sold individually, order pairs or sets as needed for front/rear.
Installation Notes
- Professional installation recommended.
- Requires coilover shock or strut with 2.50-2.60 in. spring seat ID and adjustable threaded collars/perches.
- Compatible with most 2.5 in. body diameter coilovers; measure shock travel to confirm 7 in. spring clearance.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Universal | Coilover Equipped Vehicles | All |
| 1989-2023 | Mazda | Miata (MX-5) | All (w/ 2.5in coilovers) |
| 1992-2020 | Honda | Civic | All Drag/Street (w/ matching coilovers) |
| 1989-2023 | Nissan | 240SX/Silvia | All (w/ 2.5in coilovers) |
| 1990-2023 | BMW | 3-Series | E36/E46 (w/ custom coilovers) |
Why Choose Eibach?
- Motorsport heritage with wins in Formula Drift, NASA, and SCCA racing series.
- Every spring tested for rate accuracy and load capacity at the factory.
- German precision winding ensures flawless balance in dual-rate or standalone setups.
Frequently Asked Questions
-
Q: Does this spring fit my specific coilover kit?
A: Universal design fits any coilover with 2.50 in. spring ID seats, 7 in. max compressed length clearance, and 500 lb rate needs; common in BC Racing, Tein, and Fortune Auto kits for import/domestic track cars. -
Q: What material and construction details?
A: Wound from chrome silicon high-tensile steel, dual heat treated, shot peened for 50% greater endurance, with ground flat ends and silver powder coat over entire surface. -
Q: What is the warranty and install process?
A: Eibach offers a limited 1-year warranty on manufacturing defects for ERS racing springs; install by compressing spring safely, aligning on perches, and setting preload to spec for your ride height.
Shipping & Handling
- Method: Standard Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure individual box, 7.6 x 7.6 x 3.4 inches
- Weight: 4.85 lbs
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