Sway bars, also known as anti-roll bars, are components in a vehicle's suspension system designed to reduce body roll during cornering. They connect the left and right wheels, helping to distribute weight evenly and improve stability. This enhances handling and control, making the vehicle safer and more enjoyable to drive. When a vehicle turns, the sway bar helps keep the body level by resisting the lateral forces that cause it to lean. This is especially important in larger vehicles like SUVs and trucks, where body roll can be more pronounced. Properly functioning sway bars contribute to overall vehicle performance and safety.