The M4.4 is pretty well mapped out, so to speak, but at the end of the day, it’s also clear that the M4.4 ECUs aren’t compatible with the M4.3 cars without pretty extensive modification. Pretty far from plug and play. Outside the known territory, there are thousands of differences that are either u...

So would it be a good idea to get a guide going here, or on a new site, to condense, refine, rehash, refresh and renew things? Is anyone here interested in upgrading their ECUs or tune and tinker with that stuff? There is even the possibility (though more limited) to tune the M4.3 ECUs, but that's ...

Im working on making the underlying software changes easier to make, to make the tuning a bit more self explanatory on the XDF and ADX side. If someone has time to work with me, i'm willing to make a series of How-To Videos or something of the sort to help people get started.