It was running like a dog with aftermarket pipes on until I bypassed the O2 sensors.
Regardless of what map I had in the ECU the O2 sensors would run in closed loop which caused backfiring, missing etc...
Wayne (from tuneboy) has a copy of my tune.
2 options.
You by the tuneboy product (approx $500) which gives you the key code to your ECU and hardware to connect to computer.This allows you to modify your ECU when ever you like.
2. If your in QLD you could go to Skip's (details on Ratbags forum) he might be able to download the map for you cheaper (as he would not be giving you the ECU key code)
The problem with option 2 is that if you ever want to remap you would have to go back and pay again but the advantage is you would have someone that knows how to work the program.
