1998 E38 750i 750iL - M73B54 Performance Tuning
1998 E38 750i 750iL - M73B54 Performance Tuning
1998 E38 750i 750iL - M73B54 Performance Tuning
1998 E38 750i 750iL - M73B54 Performance Tuning
1998 E38 750i 750iL - M73B54 Performance Tuning

1998 E38 750i 750iL - M73B54 Performance Tuning

Regular price $565.00

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.

TUNING FORM.PDF

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.

Features:

  • Improved gas mileage
  • Improved engine response
  • Improved wide open throttle and part throttle horsepower and torque
  • Premium Gasoline required for maximum performance
  • We do not offer tuning for emission delete, we do not disable catalytic converter or secondary air pump systems. 
  • Mail in the DMEs to have them reflashed, 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.

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.

GAINS:

16WHP @ 5600RPM

19WTQ @ 5600RPM

 

This tune is for:

BMW E38 (750i/iL V12), engine  M73B54, we can also tune euro spec'd 750i/iL no problem if you're outside of USA. 

Other BMW models with a  M73B54 conversions/swaps.

We only offer one flashing type for this car (Bench Flash).

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

If you're a local in the Seattle area in Washington, you're welcome to stop by and we can do this in person without having to remove the DME from the vehicle.

Removal of the DMEs is very simple, on almost all models the DMEs is located in the black electronics box near the firewall on the passenger side under the hood. The 750iL model uses 2 DMEs.