Description
A properly tuned rear suspension starts with the right spring rate, and the Hyperco 18SN-350 delivers the consistent, predictable load support your vehicle needs for responsive handling and reduced chassis roll. Whether you’re fine-tuning a track setup or building a performance street car, this 350 lb/in coil spring provides the foundation for controlled weight transfer and improved cornering grip. The robust construction and proven Hyperco engineering mean you’re investing in suspension geometry you can rely on, lap after lap.
- 5.0 in OD
- 11.0 in Length
- 350 lb/in Rate
- Coil Spring
- Rear Position
- Conventional Design
- Blue Powder Coat
- Sold Individually






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