News : (November 2018) I have already made pipes for two of my classic road racers using your software and they have worked better than any exhausts I have tried before, even better than several megaphones including a copy of the "factory" pipe. The Exhaust designed pipes gives as much peak Hp as anything I've used so far but have a much wider powerband and 8% more torque at torque peak. Software in a class by itself and an absolute bargain.
Run As Administrator! Make sure you "run as administrator" when installing the software. (right click on the setup.exe and select run as administrator at properties ...) You have to log into your windows as "administrator" to have rights to install software.