TODA RACING Big Single Throttle For S2000 F22C AP2 16400-F22-100Brand TODA RACING Series Name Big Single Throttle Product Number 16400 F22 100 Compatible Car S2000 Compatible Models F22C AP2 Product Description Increasing the diameter of the throttle valve and combined with a tapered entrance help to increase the amount of air the engine can breathe, giving improved performance. Dimensions are 66. 5mm up from 64mm for the throttle valve diameter and the tapered entrance starting at a diameter of 70mm. TODAs AP2