Throttle Body Flow Booster Horsepower for Pontaic Firebird (1985-1997) 5.7LHigh Flow Throttle Body Flow Booster for 1985 1997 Pontiac Firebird Designed specifically for F Body platforms, this Throttle Body Flow Booster (Air Foil) effectively redirects incoming air to eliminate restrictive turbulence directly at the throttle body entrance, yielding measurable horsepower and torque gains. The Stock Firebird Intake Airflow Limitation The factory Tuned Port Injection (TPI) and early LT1 induction systems found in 1985 1997