For 2009 – 2016 Audi S4 B8 / Adj. 2 Hole. H&R Sport Sway Bars are designed for drivers who desire improved handling without lowering or affecting ride quality. A unique feature of H&R Sport Sway Bars are the smooth, machined-like forged ends that, for specific vehicles, allow for adjustability in stiffness—giving you an unmatched level of precision and performance.