These lowering springs are a perfect fit for all model 5th generation Explorers and lower your stance approximately 1.6" front & 2.3" rear with enhanced ride quality and better handling. Every spring produced by H&R comes from the H&R ISO 9001 certified engineering and manufacturing facility in Germany. These Explorer specific springs are produced from a special 54SiCr6 spring steel, which has strength rated at 290,000 psi resulting in unrivaled tensile strength and resiliency. H&R Sport Springs offer the handling characteristics and aggressive appearance that you'e been looking for, without the harsh ride characteristics of less-advanced spring systems. H&R Sport Springs feature more control and are engineered for the street, making them comfortable and fun to drive.