Dinan Cold Air Intake - 2000-2003 BMW M5

Aluminum - E39

PART# D760-0390C

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Overview

The design goal for the M5 High Flow Cold Air Intake System was very specific: ensure that the powerful M5 engine is breathing plenty of cool oxygen-rich air for maximum performance under varying driving conditions. The system replaces the factory air-boxes with proprietary twin high flow air filters feeding large diameter intake plumbing, carefully designed to minimize air turbulence for maximum intake airflow. The filters are actually relocated outside of the engine compartment behind the front bumper and below the headlights insulating the intake from under-hood heat. Additional heat shields are incorporated in order to block the flow of power-robbing hot air passing over the radiator. The system also includes modified fog light trim rings for a ram air effect at speed. Ongoing development of the intake system revealed an interesting and significant discovery. Based upon exhaustive testing, it was determined that the stock location of the air temperature sensor within the Air Mass Meter was providing the engine management system with an artificially high reading, resulting in reduced power output. The culprit was determined to be ''heat soaking'' of the Air Mass Meter when an adequate flow of air was not passing over it, such as in daily stop and go traffic, producing a reading substantially higher than the actual temperature of the air entering the intake system. BMW's sophisticated engine management system would then automatically back off timing as a result, reducing available power until such time as the airflow cools the Air Mass Meter down. Therefore, the Dinan intake system includes an air temperature sensor relocation kit as part of the system, providing the engine management system with a more accurate reading and consistent performance. The cold air intake is crafted out of high quality black powder-coated aluminum engraved with the Dinan logo.

Features:

  • More Power: + 5 HP @ 7000 RPM, + 4 LB-FT @ 7000 RPM (coupled w/ engine software)
  • Improved throttle response
  • Uses larger cylidrical performance filters for increased flow
  • Filters re-located to maximize exposure to cooler outside air
  • Larger diameter plumbing to minimize turbulize and maximize flow
  • AMM relocation kit included

Specs

BrandDinan
Dinan Point Value3
Emission Code1
Height10
Labor Time (Hours)7
Length24
Max HP Gain5 @ 7000 RPM
Max Torque (lb-ft) Gain4 @ 7000 RPM
Product TypeCold Air Intake
Weight13.1
Width18
Part NumberD760-0390C

Service Parts

Emissions

1

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

Stage 2 Engine Software recommended for optimum performance and drivability.

Applications

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