ok... They can be done but there is currently no-one in AUS doing it.
and the other thing is that it's not as simple as the R32 ones.
The R32 EPROM can be programmed and soldered on to the ECU.
then when you do mods, the same chip (which costs about $20 to purchase as a plain chip) can be RE-programmed.
The R33 ecu will require a different chip which costs about $90 to purchase as a plain chip, then programmed and soldered to the ecu.. that's all good until you do another mod because those chips are not RE-programmable.. you have to take it off, get a new chip, program that and solder it in.
So an R32 one costs you about $100 to get it chipped and then maybe $50 to get re-tuned as many times as you want, but the R33's you have to throw out..
I know of one guy who is currently working on doing these..
but it is still in DEVELOPMENT.. and will be more expensive than the R32 ones..
All you can do at the moment for the R33 is an S-AFC for fuel and some sort of speed cut device like a PIVOT speed meter..
Or power FC I guess..