That's where our handy comparison chart comes in. If you are unsure of which one best fits your needs and circumstances, then take a look at the chart below. This should help you in making a quick and informed decision. Alternatively, speak to your dealer who will be able to point you in the right direction. Please note, that our PlugIn ECU. Default Title - $1,449.99 CAD. Quantity. Add to Cart. Buy it now. More payment options. ECUMASTER EMU BLACK is a universal engine control computer that manages the operation of spark-ignition engines, and is designed to work with the most advanced and complex currently available engines. It is the successor to our proven system, the ECUMaster EMU.