Probably the same generic Bosch ECU upgrade software that has been making the rounds and sold by a variety of vendors the past few years. Nothing wrong with it, more spark advance and more open-loop fuel makes more power but requires a certain minimum octane gas. Do they require you to pull out your ECU and send it off to 'em for the upgrade?

I sure wish there was a flash tuner you could plug into the OBDII port like the FoMoCo guys have !

Slim