H&R 51808 Sport Springs Lowering Spring Kit

The H&R 51808 Sport Springs are H&R's number one selling suspension upgrade, delivering an ideal balance of lowered stance and daily-driver comfort. Engineered and manufactured at H&R's ISO 9001 certified facility in Lennestadt, Germany, these springs are built to exacting standards for long-term durability and consistent performance.

Constructed from a proprietary 54SiCr6 chromium-silicon spring steel rated at 290,000 PSI tensile strength, H&R Sport Springs resist set and sag over time, maintaining their ride height and spring rate through years of use. Each spring is also shot-peened during production to extend service life by over 200%.

The progressive spring rate design delivers improved body control without the punishing ride quality associated with lower-grade performance springs. The result is a suspension setup that is noticeably more responsive and planted than stock, yet remains comfortable for everyday street driving.

Key Features:

• Lowers ride height 1.3–2.0 inches on average for a more aggressive stance and reduced fender gap
• Lowers the vehicle's center of gravity to reduce body roll and improve cornering response
• Progressive spring rate engineered for superb street ride quality and comfort
• Reduced aerodynamic drag signature for a more streamlined profile
• Compatible with OE and most aftermarket shock absorbers
• Powder coated for enhanced appearance and corrosion resistance
• Manufactured from proprietary 54SiCr6 spring steel — 290,000 PSI tensile strength
• Shot-peened for extended service life
• Produced in H&R's ISO 9001 certified facility in Germany

H&R Sport Springs are a straightforward, high-impact suspension upgrade for enthusiasts who want improved handling and a cleaner stance without sacrificing ride quality. Sold as a complete set.