MMR Power Control Module | BMW G8x M-Cars | M2 | M3 | M4

What PCM does.

PCM works by using our in-house developed calibration running on our standalone PCB, which communicates in parallel with the factory ECU. This communication route allows the PCM to safely optimise a variety of electronic sensor signals in real time, interfacing between the engine controls and its sensors.

Everything you need.

With 12 months of detailed development, our PCM is more than a 'tuning box'. The kit is complete, including a perfect fit wiring loom made especially for the selected vehicle.

Cooled by fins.

The unit itself is housed in a stunning billet aluminium case, finned to ensure adequate cooling plus a beautiful carbon fibre mounting bracket to affix it securely in your engine bay.

PCM vs ECU Calibration.

We're completely honest about this, the PCM calibration is not as sophisticated as a full ECU calibration. To keep the car smooth, safe and reliable, PCM's power levels have to be kept lower than traditional ECU calibrations. But of course, you'll love the power boost you get from PCM, combined with the drivability and efficiency gains.

Features:

• Significant increase in power and torque.
• Simple installation.
• Removable and undetectable.
• Constructed from Billet Aluminium.
• Anodised in signature MMR Gloss black.
• Engineered and hand-assembled in the UK.
• Calibrated in-house by MMR.
• Vehicle-specific loom and bracket.