H&R 50317 Sport Lowering Springs Set - Progressive Rate, 54SiCr6 Steel, ISO 9001 Certified

Manufactured entirely in Germany at H&R's ISO 9001 and TÜV certified facility, these springs represent the gold standard in aftermarket suspension upgrades.

Every spring in the 50317 set is cold-wound from 54SiCr6 silicon-chromium spring steel, rated at 290,000 psi tensile strength, and shot-peened for maximum fatigue resistance and long-term resiliency. The progressive spring rate design allows the springs to provide a compliant, comfortable feel during normal driving while stiffening progressively under harder cornering loads — the ideal balance for a street-driven performance vehicle.

Key Features:

• Approximate front lowering: 1.3 inches
• Approximate rear lowering: 1.1 inches
• Progressive spring rate — firmer than stock yet comfortable for daily driving
• Lowers center of gravity to reduce body roll during cornering
• Reduced fender well gap for a cleaner, more aggressive stance
• Improved aerodynamic profile for better high-speed stability
• Manufactured from 54SiCr6 spring steel — shot peened, block set, lightweight, and resilient
• Made in Germany — ISO 9001 and TÜV certified production facility
• Drop-in replacement; no modifications required

H&R Sport Springs are one of the most popular and trusted suspension upgrades available, offering genuine performance benefits right out of the box.