Ultra Racing - 6pt Middle Lower Brace - NISSAN GTR (R35) 2008-2020 - UR-ML6-973 Civic-FB The rear strut bar is

The rear strut bar is used to support the rear chassis and suspension

so that any force generated during hard braking or driving can be reduced

Each vehicles front chassis is different from another

Ultra Racing Rear Lower Side Braces is designed to reduce the flex of the vehicle chassis where it is connected by the lower wishbone of the suspension system

Ultra Racing - 6pt Middle Lower Brace - NISSAN GTR (R35) 2008-2020 - UR-ML6-973 Civic-FB The rear strut bar isUltra Racing Middle Lower Braces are designed to reduce the flex of the vehicle chassis where it is connected by the lower wishbone of the suspension system. Doing this will lessen the distortion of the vehicle lower suspension when it is under load, especially during hard cornering. It is installed at the lower mounting points between the left and right suspension and the vehicle chassis, improving the stiffness at the area where the lower arm is