Description
A precision-engineered front coil spring is fundamental to your suspension’s ability to manage load, maintain ride height, and deliver consistent handling characteristics across varying track conditions. The Hyperco 18Y0350-9.9 delivers a medium-stiff 350 lb/in rate in a compact 9.9-inch package, making it ideal for front-end setups where you need responsive spring compliance without sacrificing structural rigidity. Whether you’re fine-tuning a road course setup or dialing in a street performance build, this spring provides the predictable, repeatable performance that separates amateur builds from professionally engineered suspensions.
- Coil spring design
- Front axle application
- 5.000 in inside diameter
- 9.900 in installed height
- 350 lb/in spring rate
- Blue powder coat finish
- Sold individually






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