AEM Infinity Plug and Play Badness for the BMW S54 (E46 M3) Engine!


The Infinity ECU and bracket are bolted down.  The hole has a smooth edge and a grommet will be added later to protect the harness from chafing.


The finished job looks stock!  The coolant overflow tank is from a European model E36 which helps because it is out of the way.  Tricks like this make the install much cleaner.


A closer look of the physical install looking nice and clean.  Note that the Pure Performance bracket bolts right to the OEM ECU mounting locations.


AEM's instructions are very detailed. As long as you follow everything to the T, car will start right up. Anyone that can read and has some basic computer skills can set the Infinity up and start their car on the first try.  Daniel Wennerberg of Pure Performance shows us exactly how easy.


Step one is to Register the Infinity ECU with AEM. Go to and set up an account. If you don't do this the ECU won't work – AEM uses the registration process as a second check to make sure users have the correct hardware and base map.  Once you are logged in, enter the ECU's serial number and security code, this allows the system to give you the base parameters you need with no need to search.


1 comment

  1. Hi
    I am about to start installing my engine in to my project and looking for an alternative option to the standard eco

    The engine is BMW S54 from E36
    Former M3

    I am after stand alone after market ECU that is capable of managing the engine unit and in the future in force induction state

    I have OEM engine and after market wiring loom with BMW e36 ECU plugs.

    My question is,

    Your base map(plug and play based on what state of tune?

    What is required in order to map it correctly?

    Will I need rolling road ,dyno
    Or simply a life on bord laptop fine tuning,

    Is your ECU have the option to switch maps,

    Is your ECU come with a relay and fuse

    And how many possible drivers in your ECU as I am planning to do away with the fly by wire throttle setup

    Also lastly and most importantly what is the cost of your unit plus shipping abroad to Israel

    Thanks in advance Jim

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