M1 DEVELOPMENT LICENSE 1.4 TO 1.4.1 UPGRADE

If you already have a 1.4 M1 build development license, and you’d like to have the ability to compile 1.4.1 build files, then this is what you’ll need. This is required for your ECU to move from 1.4 to 1.4.1.

This works for all plastic connector M1 ECU’s both port injection and direct injection.