This is software Written by a User, who also writes Software for the Military.. He no longer uses or supports the software, but other users of it keep it alive.. The Software Connects to the PFC, will Keep track of the Maps and check Knock Values, and Fuel mixtures.. It will be able to tune the PRC Maps for 'Best Performance'.. LOTS of Discussions existed on a Different Forum as to how effective it is.. So far the users love it.. this software is now about 10 years old.. Just about as old as the PFC is..