With the release of ECMLink, users have the option to run any number of different mass airflow solutions. They can run a Mitsubishi MAF sensor (1G, 2G, EVO8), any one of a number of GM MAF sensors, or they can run speed density. This page outlines some of the considerations of each.

If you're not sure how airflow plays into the grand scheme of engine management, then please read the Engine and ECU operation page first.