Item is Made in UK - Can take up to 10-15 Working days to be made if No Stock. Lowering front (approx.) 25 mm / Lowering rear (approx.) 25 mm All Measurements are approximate and are based off of non-sport models. Eibach Pro-Kit and Sportline Springs Pro - Kit and Sportline Springs, and some ERS - Grade and material to specification ED-10270-2 (Steel Alloy FD SiCr). These are Zinc Phosphate and then Powder coated (Polyester Resin). Eibach Pro-Kit Lowering Springs World's leading Performance Suspension Spring System. Engineered and tested to work perfectly with stock dampers. First step towards a complete sport suspension system. Lower center of gravity. Certified adjustment area and complete documentation for an easy handling. Progressive spring design. Performance handling.