MMX Power Control Module for BMW G80 M3 2023-2025

Welcome to MMX PCM: a plug-and-play power increase for the BMW G80 G81 M3. Removable and undetectable.

+110 HP / +100 Nm

Unleash unparalleled power, effortlessly.

PCM works through our in-house developed calibration, running on our independent PCB, communicating in parallel with your factory ECU. This communication allows PCM to safely optimize various electronic sensor signals in real-time, acting as an interface between the engine controls and its sensors.

With multiple channels, such as intake air pressure, ignition, and fuel injection, controlled by the PCM computer, the result is an increase in power and torque throughout the entire RPM range.

We have completed tens of thousands of development kilometers with rigorous testing on our in-house dyno, on-road, and on-track, with numerous calibrations, across multiple vehicles, and different hardware setups, allowing us to find the sweet spot for performance, drivability, and engine safety.
After 12 months of meticulous development, our PCM is far more than just a simple tuning box; in fact, it more closely resembles a secondary ECU. The kit is comprehensive and includes bespoke wiring designed specifically for your chosen vehicle.

The unit is housed in a sleek machined aluminum casing, with fins to ensure optimal cooling, and includes a carbon fiber mounting bracket to securely fasten it in the engine bay.

Model
Chassis Code
Stock Power (HP)
Stock Torque (Nm)
PCM Power (HP)
PCM Torque (Nm)

M3
G80
480
550
580
650

M3 Competition
G80
510
650
610
750

M3 Competition xDrive
G80
510
650
610
750

M3 Competition xDrive LCI
G80
530
650
630
750

M3 Touring
G81
510
650
610
750

M3 Touring LCI
G81
530
650

630
750

M3 CS
G80
551
650
660
750

Features

Significant power and torque increase.
Simple installation.
Removable and undetectable.
Machined aluminum construction.
Anodized in MMX's signature gloss black.
Designed and hand-assembled in the UK.
In-house calibrated by MMX.
Vehicle-specific wiring and bracket.

Additional Information

We are fully honest – PCM calibration is not as sophisticated as a full ECU calibration. To keep the car smooth, safe, and reliable, PCM power levels must be kept slightly below traditional ECU calibrations. But, of course, you will enjoy the power increase PCM provides, along with improvements in drivability and efficiency.

Installation Information

The unit is housed in a stunning machined aluminum casing, with fins to ensure adequate cooling, plus a sleek carbon fiber mounting bracket to securely fasten it in the engine bay.
Vehicle Compatibility

Series

M3

Chassis Code

G80
G81

Model Year

2021+

Model Variant

M3

Engine Code

S58