Dinan High Flow Throttle Body - 1999-2003 BMW 540i/1999-01 740i/2000-2003 X5 Inline Chips & Modules the 'X' removes unwanted nuances

the 'X' removes unwanted nuances in sound caused by uneven exhaust flow that is found in stock systems

Dinan's Wheel Spacers physically move the wheel further away from the hub

The simple answer is yes

The Dinan carbon fiber intake for the platform rights these wrongs and delivers a semi-open intake capable of flowing 58% more air than the stock system resulting in additional top end power and increased throttle response

The system is a direct replacement for the factory air box lid

Dinan High Flow Throttle Body - 1999-2003 BMW 540i/1999-01 740i/2000-2003 X5 Inline Chips & Modules the 'X' removes unwanted nuancesDinan's High Flow Throttle Bodies improve intake airflow for additional horsepower and torque gains. The internal diameter of the stock throttle body is bored larger increasing the airflow area. The resulting increase in airflow provides more horsepower and torque throughout the RPM range with noticeably quicker throttle response. The throttle body is 3mm larger for an 8% increase in airflow area (Stock bore 79. 5mm; Dinan bore 82. 5mm).