Neptune RTP is a tuning hardware/software package for tuning OBD1 Honda and Acura vehicles developed by James Holy. Quality hardware, quality software and solid support combine to provide what is arguably the most comprehensive package available for tuning these cars. More information can be found at the official Neptune site here. The Neptune RTP software can be downloaded here.
Currently, the Demon is the only supported hardware for Neptune. We sell the Demon+Neptune RTP setup.
The original Neptune RTP board was designed by Moates. It is no longer in production and has been replaced by the Demon.