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.Installation Instructions(hf) 54SiCr6 Spring Steel, Shot Peened, Block Set, Lightweight, Strong and ResilientProgressive spring design, reduces ride height, superb ride qualityOur top selling springmade in GermanyThis Part Fits:YearMakeModelSubmodel1997-1999,2004PorscheBoxsterBase2000-2003PorscheBoxsterRoadster2000-2003PorscheBoxsterRoadster S2004PorscheBoxsterS2004PorscheBoxsterS Special Edition