Dinan High Flow Throttle Body - 2001-2006 BMW 325i/525i/X3/Z3/Z4

Dinan's High Flow Throttle Body improves intake airflow for additional horsepower and torque gains. The internal diameter of the stock throttle body is bored larger for a 13% increase in airflow area. The resulting increase in airflow provides more horsepower and torque throughout the RPM range with noticeably quicker throttle response.