H&R Sport Springs 2011-16 BMW 550i xDrive F10 / 2013-17 640i/650i Gran Coupe xDrive F06Sport Spring kits are H&Rs number one selling product. Enhance the look of your 2011 16 BMW 550i xDrive F10 2013 17 640i 650i Gran Coupe xDrive F06 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