frankly speaking, auto tranny can do alot of magical stuff but can't go far enough if same modifications compared with a manual trans.
for Waja, one famous place you should visit is FTD (full throttle dev), located behind Ah Heng exhaust USJ. they done lots of modifications on AT for WPC members if not mistaken.
but using good ATF oil, ATF cooler and a nice piggy back is a good way to start, equipped with CAI and exhaust setup, you will have a better AT than those Wajas stock standard on the road.
further enhancement would be playing with lighten crank pulley, lighten flywheel, retard camshaft, adjustable lighten cam pulley and port n polish... what i am trying to say is NA Power mods.
for FI (forced induction), i do recommend run it on a MT gb is better.
my 2 cents, i could be wrong, all sifus can correct me. thank you for reading my little opinions.