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Dinan High Flow Throttle Body - 1999-2003 BMW 540i/1999-01 740i/2000-2003 X5


PART# D760-3440A

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Dinan'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).


  • More Power (1999-03 E39 540i): + 8 HP @ 5500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)
  • More Power (1999-01 E38 740i): + 8 HP @ 5500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)
  • More Power (2000-03 E53 X5 4.4i): + 8 HP @ 5500 RPM, + 8 LB-FT @ 5500 RPM (coupled w/ engine software)
  • More Power (E53 X5 4.6is): + 8 HP @ 5500 RPM, + 7 LB-FT @ 5500 RPM (coupled w/ engine software)
  • Improved throttle response
  • Bored 3mm larger for a 8% increase in air flow area


Dinan Point Value2
Emission Code1
Labor Time (Hours)0.8
Max HP Gain8 @ 5500 RPM
Max Torque (lb-ft) Gain7 - 8 (Depending on application)
Product TypeThrottle Body
Part NumberD760-3440A



This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturers application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Not compatible with the 740iL (E38) from 1996-1998, 540i (E39 from 1996-1998 or the X5 4.4i (E53) from 2004-2006. Stage 3 Engine Software and High Flow Cold Air Intake recommended for optimum performance and drivability.



    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

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