I just went to their website, anyone know what the "stick-shift" kit does and how it works? Any help would be appreciated since I think I would make a shift kit the final mod to my auto GT before I step it up and pick up a Mach, hopefully this summer.

 

Try a search, I'm sure this topic has been covered many times before. Some cons to a Transgo system. Check out these guys also, they have a good reputation: http://www.baumannengineering.com/aodecat.htm