The rear sway bar, also known as the anti-roll bar, is a suspension component that helps keep your car from rolling over in corners. It does this by connecting the left and right sides of the suspension together so that they work together to resist body roll. A rear sway bar makes a big difference in how your car handles, and it’s an important part of any performance suspension setup. A well-designed rear sway bar will improve the handling balance of your car by reducing body roll without affecting ride quality or increasing noise, vibration, and harshness (NVH). A good rear sway bar will also improve traction by keeping both wheels on the ground more evenly, which is especially helpful in slippery conditions. There are many different designs and sizes of rear sway bars available, so it’s important to choose one that’s appropriate for your car and driving style. If you frequently drive on twisty roads or track days, you’ll want a larger Rear Sway Bar than someone who only drives on the street. And if you have a light car with a powerful engine, you may want to consider an even larger Rear Sway Bar to help keep everything under control.