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The H&R front and rear sway bar kit for 2017–2022 Audi A4 (B9) pairs a 32mm front bar with a 22mm rear bar to increase roll stiffness and reduce body roll without degrading ride comfort. Made from high-strength 50CrV4 steel with forged ends and usually supplied with H&R's Poly/Teflon bushings, the matched kit is engineered to improve cornering control, lateral stability and grip while offering a bolt-in handling upgrade.
H&R 17-22 Audi A4(B9) Sway Bar Kit - 32mm Front/22mm Rear
