Nistune is available for the aus delivered K11, it's the type 5 board, so do some research and find your local tuner that is a Nistune rep and talk to them. I got mine done recently. Supply, install and setup+tune cost me just shy of $1k. I've only got extractors and exhaust so far and only gained 2.5hp at the top end but i got 10-13% more power through the usable rev range and much better fuel economy.