The MMR aftermarket control unit for the BMW M3 and M4 G8x 550 ch enables power output to exceed 650 ch while adding over 100 Nm of torque. This solution, developed by MMX Performance, offers one of the best performance-to-reliability ratios for owners of BMW M models equipped with the S58 engine.
The PCM acts as a second control unit capable of optimizing various engine parameters in real time to deliver greater power across the entire revolutions range.
Each calibration has been validated through numerous development sessions to ensure consistent performance both on the road and on the track.
The kit includes a dedicated Plug & Play wiring harness, a machined aluminum unit with integrated cooling, and a carbon fiber mounting bracket.
The unit is housed in a superb machined aluminum housing, featuring fins to ensure adequate cooling, as well as a stunning carbon fiber mounting bracket that allows it to be securely mounted in your engine compartment.
Important Information: Aftermarket control units modify the engine’s operating parameters and may alter the vehicle’s performance characteristics (power, torque, emissions, etc.). Installing them may render the vehicle non-compliant with its original approval and prohibit its use on public roads under applicable regulations. These products are intended for use on a racetrack or in accordance with applicable laws.
