Why is everyone hating on the A/T? Silly boys want to play with a stick and stomp on the floor board all the time and thats better? Im all about the A/T and glad I have it.
M/T are dinosaurs and disappearing for a reason guys.
As far as modding an A/T, not sure about these newer cars with electronics controlling the shift points. With the old school cars you could install a shift kit or powerball it.
What are you looking for out of the tranny any way?