MMX BMW G80 / G81 M3 & G82 / G83 M4 S58 POWER CONTROL MODULE

Unlock the full potential of your BMW G80/G81 M3 or G82/G83 M4 with the MMX Power Control Module (PCM) – a plug-and-play performance upgrade that delivers huge gains in power and torque while remaining removable and undetectable. Developed as a smarter alternative to ECU tuning, the PCM works in parallel with the factory ECU, using MMX’s in-house developed calibration on a standalone PCB. By safely optimising multiple sensor signals – including charge air pressure, fuelling, and ignition – the PCM delivers seamless, reliable gains across the entire powerband. After 12 months of development and tens of thousands of dyno, road, and track miles, the PCM has been fine-tuned to achieve the perfect balance of performance, drivability, and engine safety. Unlike basic tuning boxes, it acts much closer to a secondary ECU, offering precision control and OE-level integration. Each unit is housed in a billet aluminium case, anodised in MMX’s signature gloss black for durability, with finned cooling for reliability under load. A carbon fibre mounting bracket and vehicle-specific loomensure a perfect fit and simple installation. KEY FEATURES: Plug-and-play Power Control Module for G8X S58 engines Gains of up to: Standard M3: 550 hp & 650 Nm Competition, LCI & CS/CSL models: 650 hp & 750 Nm Acts as a secondary ECU, not a simple tuning box Optimises multiple channels in real time (ignition, fuelling, boost) Removable and undetectable – warranty friendly Developed with extensive dyno, road & track testing CNC-machined billet aluminium housing, anodised gloss black Carbon fibre mounting bracket for secure installation Includes vehicle-specific wiring loom for OE-quality fit Engineered and hand-assembled in the UK Calibrated in-house by MMX for performance and reliability COMPATIBILITY: BMW G80 M3 Saloon (2021+) BMW G81 M3 Touring (2023+) BMW G82 M4 Coupe (2021+) BMW G83 M4 Convertible (2021+) Unlock a new level of performance with the MMX PCM for BMW G80/G81 M3 & G82/G83 M4 – the smart, safe, and powerful plug-and-play solution for your S58 engine.