Hyperco 18Y0450-10.5 Front Coil Spring 5" ID 10.5" Length 450 lb/in

The Hyperco 18Y0450-10.5 is a high-performance front coil spring engineered for racing and high-performance street applications. This precision-wound spring features a 5-inch inside diameter and 10.5-inch free length, with a spring rate of 450 pounds per inch.

Key Features:

• 450 lb/in spring rate for responsive handling and predictable suspension performance
• 5-inch inside diameter fits most common coilover shock bodies
• 10.5-inch free length provides excellent travel range
• Manufactured from high-tensile chrome silicon steel for superior durability
• Precision wound to tight tolerances for consistent rate throughout compression
• Ground and squared ends for stable seating on spring perches
• Powder-coated finish for corrosion resistance

Hyperco springs are manufactured in the USA and are trusted by professional race teams across multiple motorsports disciplines. Each spring is heat-treated and shot-peened to maximize fatigue life and maintain consistent performance under extreme conditions. The 18Y series features Hyperco's yellow identification color coding.