MoTeC’s new MCM112 ECU Kit is a complete replacement for the factory ECU on numerous Mercury engines, such as the 450/500R and naturally aspirated V8 and V6 models*.

The kit includes a knock sensor and knock control system, offering a significant advantage over the factory ECU.

The MCM112 ECU plugs in quickly and easily, utilising the latest M1 firmware to unlock maximum performance, with or without further modifications.

Unleash your Mercury’s true potential!

• Easy bolt-in installation
• Total and instant control of all tuning parameters
• Everything is provided - including knock sensor and mounting accessories
• Fine tune your engine for maximum power and economy
• Accommodates any engine modifications – e.g. Injectors, Supercharger Pulleys, NOS and Fuel Changes
• Suitable for single and multi-engine installations
• Integrates with Mercury dashes
• Seamless connectivity with MoTeC Displays and other MoTeC accessories

Impressive power gains during testing

By simply switching out the original ECU on a stock Mercury 450R with a MoTeC ECU, we recorded an additional 137 HP.
The power gains increased significantly with an aftermarket Supercharger kit resulting in 199 HP over stock.
In our most recent test, we added nitrous on top of the supercharger kit and recorded an additional 120 HP, bringing us to a total of more than 300 HP above stock.

Find out more
Full Kit specifications are now available here.

*V6 Outboard Engines coming in version 2 update.