If you are in Perth then I wouldn't go anywhere else other than Simon at XFT. A flash tuner will be about $700 and I'd think the tune would be about $700 as well. $1400 is the going rate for this work and worth paying if you want a reliable tuned car. Considering how much it would cost to rebuild an engine after failure from running a generic tune I'd say it's money well spent.You'll see a max of approx 270-280rwkw from factory injectors so they are a must. My advice would be to install injectors, high flow cat, intercooler + piping and tune. This will max the oem GT3576 turbo resulting in approx 320-330rwkw. Benny.