Computer analysis is performed to determine the shape of the bonnet and the size and position of the air outlet. In order to further confirm the best specifications, actual running tests were conducted at the circuit and developed. It efficiently dissipates the heat in the engine compartment and combines it with other aero parts to achieve higher aerodynamic performance. The back side of the bonnet is made of dry carbon as well as the front side, and the inner ribs are the same as the normal one to ensure sufficient strength. In addition, a drainage hole is installed at the tip to prevent rainwater, etc. that has entered through the air outlet, directly from the engine. Made of dry carbon. UV cut clear paint finish.