I was wondering if there are any mods that can be done to an auto box or some part of it to make it a little more fun to drive with. I mean something similar to a quickshifter for manual boxes. I also don't mean tiptronic or changing to a manual box.
Any ideas and what the advantages are of these mods?

nope you cant do anything.....ive jammed mah shifter down for a quick up/down

Yep! Change to a manual :D

You can do an number of things up upgrade the valves and solnoids, upgrade the torque converter etc etc. This will really improve your box but it won't be a smooth when it changes gears...