Tein High.Tech springs utilize the latest spring and material technology to optimize comfort, performance, and quality. The line is produced with Vanadium (SAE9254V), which is strong, lightweight, and has properties to retain more spring stroke. High.Tech springs are designed for those seeking a slightly lowered stance while maintaining high ride quality at a reasonable price. Spring length is guaranteed not to sag more than 5mm and to be clear of any manufacture defects. Zinc Phosphate Coating with Gold Powder Paint Rubber Spring Protector Prevents Noise Designed Specifically to Fit Each Application for Maximum Performance More Attractive Appearance with Comfortable Ride Quality One Year Limited Warranty F Drop (in) -0.6 R Drop (in) -0.6