1998 BMW E38 750i 750iL - M73B54 DME Performance ECU Tuning

DUDMD Tuning: Engine Performance Software Tune Upgrade for 1998 BMW E38 750iL - M73B54.

E38 M73 DME Performance Tuning Features:

This tuning service offers a reflash of your DME software to increase the performance of you vehicle by modifying the factory tune and is for these BMW models:

E38 M73 Performance Flash Tune Gains:

    • 16WHP @ 5600RPM
    • 19WTQ @ 5600RPM

E38 M73 Performance Tuning Features:

    • Improved engine response
    • Improved wide open throttle and part throttle horsepower and torque
    • Premium Gasoline required for maximum performance
    • Mail in the DMEs to have them reflashed on the bench, also we have the option of reflashing your DMEs remotely, which results in no down time with the car. This option is an extra $50 and requires a windows laptop and WIFI.

Please Note: BMW E38 750iL Performance Tuning Flash does not:

    • We do not offer tuning for emission delete, we do not disable catalytic converter or secondary air pump systems. 
    • We do not offer tuning services to the state of California.

    Production date of your car has to be 6/97 or newer. Check the VIN tag on the drivers door jamb to make sure that date matches and always include the last 7 of your VIN in your questions/messages.

    We have 2 methods of having your E38 V12 M73 Tune installed (Flash Type Selection).

     - E38 750iL M73B54 Bench Flash Tune - BENCH: 

    Remove the DME/ECU and mail it in. We will create a full backup image of your ECU without opening the lid or any physical damage to the ECU at all. We then upload our tune and mail the DME/ECU back. This is the safest way, as we can have a full backup of the entire ECU content.

     - E38 750iL M73B54 Remote Flash Tune (Recommended): 

    With this option, once an order is placed, we will ship you a cable, that cable connects to a laptop and we are able to remote into your computer to flash the car. The remote flash option includes the cost of the cable (which is yours to keep). If we are out of cables for remote flashing, we can offer a cable for rent with a deposit. (We will message you if this happens). In some cases, not all cars can be flashed this way. In that case, you will have to ship your ECU to us for a bench flash. You will need a Windows 8 or newer laptop and WIFI to flash remotely (Apple, Chromebooks are not supported)

    Vehicle Fitment:

    BMW E38 1998 750i 750iL V12, engine  M73B54, USA

    BMW E38 1998 750i 750iL V12, engine  M73B54, EURO

    BMW DME Model: Bosch M5.2.1 M73B54

    BMW DME Model: Bosch 0261204466 Bosch 0 261 204 466 M73B54

    Other BMW models with an M73B54 conversions/swaps.


    Please print out this form and mail it in with your DME. DME will not be flashed until the form is filled out and sent to us. Thank you.
    E38 M73B54 Performance ECU Tune: E38 750iL M73 Stage 1 Tune - Bench Flash
    In stock
    Sale price$565.00

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