If I wanted a k04, I would have just bought a TTS. Yes a k04 on a 2.0TFSI w/ valve lift can make a bit more power than a TTS... But again, I would have just bought a TTS if I wanted a k04.
This is my dd which I can get between 33 and 35 mpg when I keep my right foot light. So it can be quite jekyll & Hyde in that regard.