ESS's kit states "under development" (like u stated) which is NO help because these various tuners have been saying that BS for years now yet have produced nothing. ...And who's brad? What's his company? (not to sound derogatory in anyway) I don't know many members on this fine forum
I have yet to see or hear ANYTHING about a kick-a$$ F/I equipped E46 M3 to date
Would really like to know.