The Tom Cole (is that it guys?? never remeber his name)makes one that some of the vendors sell. Supposedly makes like 6-8rwhp.
With our car's it's like squeezing a lemon that has already made two cups of lemonade. There just isn't much left to get out.
Mine was programmed by http://www.z-industries.com .
Hib Halverson recommended them to me, Corvette Concepts sent the computer to them so I don't know if they deal direct.
They asked for every mod done to the car and and programmed it accordingly.
Still only got 6 rwhp