Give your BMW M3 F80 a serious step up in performance with the MMX PCM, a plug-in piggyback ECU tuning box built for the S55 twin-turbo engine. This quick-fit power control module installs using factory connectors, needs no ECU flash or coding, and makes no permanent changes to your vehicle electronics. Expect stronger mid-range pull, sharper throttle response and an OEM-like drive, all while keeping the upgrade fully reversible.
- Plug-and-play installation using existing connectors with no cutting or splicing
- No ECU remap required and no permanent coding
- Fully reversible so you can return to stock at any time
- Noticeable gain in real-world power and torque with crisper response
- Engineered as a hardware tuning box for BMW M3 F80 with the S55 twin-turbo straight-six
- UK supply and support from Nforcd, with optional professional fitting
If you are searching for a BMW M3 S55 tuning box, piggyback ECU, plug-in power module or a remap alternative you can remove whenever you like, the MMX PCM is a smart, hassle-free upgrade for road use and track days alike. Nforcd knows this product well and it has been a popular choice with our customers who want an aftermarket power upgrade while keeping factory drivability.
Compatibility: BMW M3 F80 equipped with the S55 twin-turbo engine.
Order online today from Nforcd. Prefer us to install it for you? Fitting is available at Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.





