A strut brace is a component used in vehicles to enhance chassis rigidity. It connects the tops of the strut towers in the suspension system, reducing flex during cornering. This added stiffness helps improve handling and stability, especially in performance-oriented cars. Strut braces come in various designs, including front and rear options, and can be made from materials like aluminum or steel. They are popular among car enthusiasts and racers who seek to optimize their vehicle's performance on the road or track. Installing a strut brace is often considered a simple upgrade for better driving dynamics.