Utilizing the know-how and CFD analysis that we have accumulated in our racing activities, we have developed with the goal of integrating functionality with styling. Like the front, it is a full bumper type and adopts FRP material. Diffuser with separate structure has carbon and FRP specifications. A resin grille is used in the center of the bumper to reduce the parachute effect. In addition, the grills on both sides release the pressure inside the wheel house and exert a downforce effect by the pressure difference. The aerodynamic performance is maximized by the synergistic effect with the diffuser’s underside rectification effect. SPOON N1 muffler kit and factory muffler can be installed.