108mm Billet Throttle Body

The F.A.S. Motorsports 108mm Billet Throttle Body is a precision-CNC-machined, direct-fit upgrade for Hellcat platform vehicles, replacing the factory throttle body with a larger 108mm bore billet aluminum unit that significantly increases peak airflow capacity. The factory Hellcat throttle body, while performing well in stock applications, becomes a restriction point in modified builds where boost pressure and airflow demand have been increased beyond its designed capacity. The FAS 108mm throttle body eliminates this restriction with its expanded bore size, allowing the engine and supercharger to breathe more freely at high RPM and full boost — translating into improved throttle response, faster boost buildup, and more power throughout the upper RPM range. Machined from 6061 billet aluminum, the body is stronger, more dimensionally consistent, and more thermally stable than the factory plastic or composite unit, providing a long-service-life component that can withstand the demands of high-boost applications. The 108mm throttle body is a direct bolt-on upgrade, using the same mounting pattern as the OEM unit and compatible with the factory throttle body actuator and wiring harness. This upgrade is particularly effective when combined with a billet supercharger snout upgrade for a fully matched and optimized inlet system. Whether you're running a pulley upgrade, ported supercharger, or a full race build, the FAS 108mm Billet Throttle Body is an essential component for extracting maximum performance from the Hellcat platform.