H&R 22-23 BMW M3/M4 Competition xDrive G80 (AWD) 30mm Front Non Adj. Sway BarH&R Sport Sway Bars 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 that, for specific vehicles, allow for