Designed by Edelbrock, the Performer-X Throttle Body comes complete with a new throttle position sensor and bore area that’s 18% larger than stock for increased performance. Edelbrock street legal throttle bodies bolt directly to the stock manifold with mounts for stock sensors and vacuum lines. They are the best choice for accurately controlling airflow into the Edelbrock Performer X manifold but are also engineered to work perfectly on an OE intake. The large bore area is capable of enough airflow to supply full tilt alcohol and turbocharged drag engines making upwards of 800 HP.