http://openecu.org
All the free reflashing software you need - kindly "DONATED" by hard working individuals for the benefit of end users (you & me).
Downloading, researching, understanding, testing & tweaking someone else's freeware then re-badging and selling it doesn't constitute R&D in my books and goes completely against the grain of the openecu community and the spirit & intent behind it and why it was created in the 1st place.
Map gathering will also now result in most tuners locking
ecu's to prevent copying/distribution, so prepare yourself.