Dinan High Flow Throttle Body - 1999-2003 BMW 540i/1999-01 740i/2000-2003 X5 Lug Bolts The F10 M5 cold air

The F10 M5 cold air intake allows cool outside air to be pushed into the engine via a pair of supplemental carbon fiber intake ducts located at the front of the engine bay

The two intercoolers are beautiful and purposeful looking wrapped in black powdercoat and laser engraved with the Dinan logo

The BMW 335is comes from the factory with an auxiliary radiator smaller than a half sheet of paper

The F10 M5 Dinan high flow carbon fiber cold air intake

This doubling of resources is directly responsible for a 60% improvement in the delta from charge air temperature to ambient temperature (see diagrams)

Dinan High Flow Throttle Body - 1999-2003 BMW 540i/1999-01 740i/2000-2003 X5 Lug Bolts The F10 M5 cold airDinan'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).