H&R 29497-1 Sport Spring: Automotive. Buy H&R 29497-1 Sport Spring: Springs - ✓ FREE DELIVERY possible on eligible purchases. Sport Spring . Front lowering: not applicable . Rear lowering: 1.25 inch . Superb ride quality . 100 percent made in Germany . Every spring produced by comes from the ISO 9001 certified engineering and manufacturing facility in Germany. All springs are produced from a special 54SiCr6 spring steel, which has strength rated at 290,000 pound per square inch resulting in unrivaled tensile strength and resiliency. Sport Springs offer the handling characteristics and aggressive appearance that you've been looking for, without the harsh ride characteristics of less-advanced spring systems. Sport Springs feature more control and are engineered for the street, making them comfortable and fun to drive. Sport Springs are crafted from a special 54SiCr6 spring steel to ensure quality and performance. Features: Lower 1.5-2.0 inches on average. Superb ride quality. . . .