This Nismo Power Brace is designed to strengthen the chassis and improve transient response by connecting the tension rod brackets. The power brace reduces movement of the tension and control arms during hard cornering. When installed, handling and steering will improve and it is legal for SCCA Solo, IT, or Production racing. Replacing the tension rod is recommended when upgrading to the power brace since the tension rod connects to the power brace. A very popular and highly effective suspension upgrade. Once it's on, you will definately notice the difference!