Description
Achieving consistent rear-end performance requires a spring engineered for precise load control and predictable handling characteristics. The Hyperco 18S-350 delivers a stiff 350 lb/in rate that resists unwanted deflection under acceleration and cornering, giving you the stability needed for repeatable lap times or aggressive street driving. Whether you’re tuning a dedicated race car or upgrading a performance build, this coil spring provides the foundation for dialed-in suspension geometry.
- 5.0 in OD
- 13.0 in Length
- 350 lb/in Rate
- Conventional Design
- Blue Powder Coat
- Bolt-On Installation
- Rear Application
- Sold Individually






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