Sway bars (also known as anti-roll bars) reduce body roll when cornering. It's the difference between a vehicle that wallows about and one that is sure-footed and confidence inspiring. These links secure the sway bars to the front suspension arms, but after a few years the ball joints will wear out and diminish the vehicle's reactions during cornering. An easy job, replacing the sway bar links is a great way to restore handling to your car. Made by Germany's Febi-Bilstein.