H&R 28mm F&R D&S Sway Bar Kit | BMW 328i Sports Wagon xDrive (12-16) (72878-6)H&R Sport Sway Bars for your 2012 2016 BMW 328i Sports Wagon AWD (F31) are designed for drivers who desire improved handling without lowering or affecting ride quality. H&R Sport Sway Bars increase your suspension's roll stiffness or its resistance to roll in turns while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and grip. A unique feature of H&R Sport Sway Bars are the smooth, machined like forged ends