H&R Springs Sport Spring Kit Sport Spring kits are H&R's number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R'sport Springs lower the vehicle's center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle's suspension, you cannot go wrong with installing Sport Springs. Fun to drive, H&R'sport Springs are the number one upgrade for your vehicle. Our top selling spring Progressive spring design, reduces ride height, superb ride quality (hf) 54SiCr6"spring steel, shot peened, block set, light weight, strong and resilient 100% made in Germany