http://www.fullthrottletech.com/show...=6887#post6887
Allows you to run different mafs, or convert to speed density, ditch the maf and run a map sensor. It has fuel control but I'm not sure if they're worked in timing control yet.
I'm using their older version that allows me to use a gm maf which is far less restrictive than the stock junk. For 400$ it's not a bad deal. The only other good "inexpensive" option is another ECU program that costs 550$ and doesn't allow for speed density. Other than that it's a full standalone which I have no desire to do.
GN/Supra/DSM are the main target, but it's my understanding it should work for any car with a maf.
I didn't look for long to see any mustang related threads, but this guy is using a ford cobra maf on an evo.
http://www.fullthrottletech.com/showthread.php?t=1254
Anyway I thought some people might be interested in a new option.