For Spoon, we reviewed and tested the conventional throttle body and developed the Venturi Big Throttle Body as a product with higher effect. The feature of the product is that the inner surface of the throttle body is shaped like a Venturi to improve the filling efficiency, and at the same time, the inner surface roughness is mirror-finished, so the diamond cutting method is used to reduce the suction resistance to the utmost limit. Furthermore, a large-diameter butterfly is adopted, and the butterfly adopts an elliptical shape with an oblique cross section, ensuring the same durability as the genuine one.