I think Vishnu and TurboXS is more popular in the States because of available local installers. AVO is well known in AU I think. If you can find a local AVO tuner then it is just as good as anybody else.
They are pretty similar mods, btw I will take any stage 1 kit
What could you do for me God? I realize more horsepwer = more money spent. I have a friend who has a mustang gt and its kind of close now but i want to beat him every time. I appreciate the helpful ideas - Also i was planning on maybe doing some of the work myself if possible. Or if anybody could reccomend a good shop in the dallas area.