Evasive Motorsports: ST Suspensions Adjustable Lowering Springs Dodge Dodge High Horse Performance, Inc. Installing H&R LOWERING SPRINGS on my 2020 Dodge Charger Hellcat and H&R Springs Dodge Challenger YouTube INSTALLING H&R SPRINGS ON MY DODGE CHARGER YouTube. Sport Spring kits are H&Rs number one selling product. Enhance the look of your 2009 2018 Dodge Challenger 2006 2019 Dodge Charger with a reduced fender well gap. H&R Sport Springs lower the vehicle 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 vehicles suspension, you cannot go wrong with installing Sport Springs. Fun to drive, H&R Sport Springs are the number one upgrade for your vehicle. Lowers vehicle approximately front 1. 7" front & 1. 4" rear.