BBK Performance throttle bodies are designed as a direct replacement for the restrictive stock factory throttle body. All BBK Power Plus throttle bodies offer OEM drive ability but with up to 30% improved airflow for improved horsepower torque and throttle response. Every BBK throttle body is CNC Machined from a new high quality 356 aluminum casting and assembled with features like OEM style die stamped throttle linkages double sealed bearings and o ringed throttle shafts to make every BBK throttle body the best on the market today. All BBK Performance throttle bodies are designed to improve performance. Designed as a direct bolt on replacement - 50 State legal - CARB Approved