Every spring produced by H&R comes from the H&R ISO 9001 certified engineering and manufacturing facility in Germany. All H&R 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’ve 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. H&R Sport Springs are crafted from a special 54SiCr6 spring steel to ensure quality and performance. *Features* * Lowers 1.5-2.0 inches on average * Superb ride quality

Features and Benefits

• Our top selling spring
• Progressive spring design, reduces ride height, superb ride quality
• (hf) 54SiCr6 Spring Steel, Shot Peened, Block Set, Lightweight, Strong and Resilient
• made in Germany

Fitment: 2015 BMW M3/M4 (F8X / F80 / F82 / F83). Manufacturer: H&R. Part #: 50474-6.