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ECU Tuning for BMW M850i G1x 2018+

(N63 4.4L V8 Twin Turbo)

(Bosch MG1CS006 ECU/DME)



- ECUPROGRAM tune file

- ECU Tune Install


M850i N63 Tuning Potential:


- - STOCK HP & TQ - -

523 HP / 553 FT-LB (750 Nm)


- - STAGE 1 - -

680 HP / 627 FT-LB (850 Nm)

Can be performed on stock M850i


- - ZF8HP TCU Tuning - - [+$599]

BMW Transmission Tuning:

- Increased torque through all RPMs,

- Noticably Smoother Shifts and Acceleration

- Custom shift patterns to match your driving needs

For automatic transmission and can be done with any Stage of Tuning!


Stock power and gains vary based on conditions and state of the vehicle.


The BMW N63 engine is a powerful 4.4-liter twin-turbocharged V8 engine. It boasts an innovative direct injection system, ensuring a highly efficient combustion process, resulting in improved fuel efficiency and reduced emissions. The N63 engine features BMW's Valvetronic and Double-VANOS optimizing valve timin. Combined, these technologies make the N63 engine a remarkable feat of engineering and powerful V8 engine.


The ZF 8HP is an 8-speed Hydraulic system Planetary gear automatic transmission. It is still used in a wide range of high end car models including: Aston Martin, most BMW Serie, Audi, Rolls-Royce, Toyota Supra, and many more. The ZF 8HP was first introduced in 2009 and is a popular choice among car enthusiasts for its smooth and responsive shifting, excellent fuel efficiency, and reliable performance capabilities.


The MG1CS006 is an engine control unit (ECU), also known as DME/ECM/DDE. It is responsible for controlling the fuel injection, turbocharging, and other engine management functions. In order to tune the BMW 850i, it is necessary to modify the MG1CS006 map, through ECU programming, remapping or through the use of an aftermarket tuning box.


There are several reasons why you might consider BMW N63 tuning, including:


- Increase Horsepower & Torque: The most noticable benefits of tuning your ECU is the increase in horsepower and torque. Even without aftermarket modifications, you can see a significant improvement in your engine's performance, resulting in faster acceleration and a more engaging driving experience.


- Improve Fuel Efficiency: While more HP and TQ is often the primary goal of tuning, many tuning parameters can also result in improved fuel efficiency. By optimizing the engine's performance, you can reduce the amount of fuel needed to accelerate and cruise, saving you money at the pump.


- Enhanced Reliability: By addressing common issues from the factory and making the engine more efficient, you can reduce the risk of breakdowns and extend the life of your vehicle.


Tuning File Fits:

2018+ BMW M850i G14 G15 G16 (4.4 Litres, Turbocharged)

BMW M850i G1x N63 Tuning (2018+)

SKU: EP-N63-M850i-TUN
  • - TCU Tuning [+$599]

    (Automatic transmission programming)

    (Increase responsiveness and power potential or fuel economy)

    (Cannot be shipped it has to be done in store only)


    - Send in your ECU to get tuned and then shipped back

View parts for this car



Turbocharger for VW/Audi 2.0/1.8 MQB PLATFORM




Test Pipe for 2009-2017 Audi A4/A5/Q5 2.0T with EA888




Supercharger Pulley Upgrade Kit for Audi with 3.0T supercharged (before 2016)



Look no further - ECUPROGRAM, your dream Performance Tuning & Upgrade Shop is here! For more information about our ECU tuning services and how it can benefit your vehicle, don't hesitate to reach out to us.

4527 1 St SE, Calgary, AB T2G 2L2, Canada

(403) 457-3650

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