Dinan Stage 4 Performance Engine Software - 1999-2001 BMW 740i

E38

PART# D903-447TU4

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Overview

Stage 4 Engine Software is for use with the High Flow Cold Air Intake, Throttle Body and Air Flow Meter, ensuring optimum performance and drivability. Dinan Performance Engine Software unleashes more power from your BMW 740i and 740iL by re-programming the fuel mixture and ignition timing parameters of the engine management system. Furthermore the software safely raises the rev-limit, giving your BMW a broader power band and greater road speed potential in each gear. Significant gains are also achieved at part throttle, making extra power available where you spend the bulk of the time driving.

Features:

  • More Power (with intake, throttle body and air flow meter): Max gains of +31 HP and +28 lb-ft TRQ
  • 50 State Emissions legal; CARB EO # D-176-26
  • Top speed governor removed
  • Rev-limit increased
  • Improved throttle response
  • Smooth and predictable power delivery

Specs

BrandDinan
Dinan Point Value3
Emission Code1
Factory Rated HP282
Factory Rated Torque (lb-ft)324
Labor Time (Hours)0.5
Max HP Gain31
Max Torque (lb-ft) Gain28
Product TypeEngine Software
Required ItemsDinan Cold Air Intake (NLA), Throttle Body (D760-3440A) and Air Flow Meter (NLA)
Weight6
Part NumberD903-447TU4

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

Not compatible with the 740i (E38) from 1996-1998. Dinan Cold Air Intake System, Throttle Body and Air Flow Meter are required in order to run the Stage 4 Performance Engine Software.

Applications

Reviews

    *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.