[DayTE]

I'm assuming you mean with a flash tuner. But apart from the mainland you are pretty limited here in Tassie. You could try Howell Automotive in Hobart or there is a new place in Ulverstone called Confidyne and I think the can do the flash tuning.

If you are talking with something else they could probably still help you, but I'm sure there are one or two other places that are about. I've just had no experience with anything else.