Im getting a slight screech noise from the car when under load from around 4000 rpm to 4300rpm, its like a short screech noise, not loud but you can hear it. I only get it when i put my foot down from low revs. The noise is only there for a few 100 rpm then there is no noise right up to the redline. If i gradually build up the revs i dont get the noise, even when revving it stood still i dont hear it. Car has been doing it since the map, it hasnt been driven that hard either as the weather has been rubbish. Not sure what to do as quattronics is really far. Would any revo dealer have a look at it?
Sorry to hijack your thread ben, congrats on the stage 2 mate 
LOL.. Sounds like the old turbo noise worry..
I and most people get this mate after mapping a VAG turbo engine. Had the same noise with my LCR. It's just the turbo as it is now running more boost. Does it start off quiet-ish at really low revs then get louder then disappear once at high revs? Sounds like (although it's hard to describe) a deep (low pitch) turbo whistle yeah?
If it is what I think it is, it's nothing to worry about at all. I'm sure Red or one of the other mapped boys will be along to confirm this soon...

Other than that, how you enjoyin it mate?