I've timed the car a few times since the remap, but only with someone holding the stopwatch next to me. The really unfortunate thing is that I haven't been able to do it on a bang flat piece of road, whilst starting off in the middle of the road. 5.35 seconds is the best I have managed so far (using GPS rather than the speedo as the passenger can see it and it is accurate). Traction is a big factor in the 0-60 equation as it only takes a mild break of traction to kill the sprint time

. I reckon that on a flat straight piece of tarmac you would see a 5.1 to 5.2 second 0-60. At Santa Pod with a good launch you would probably get the magic 5 second 0-60, but that is more due to the extra traction you get off the line due to all that rubber already laid down on the tarmac at the starting blocks

TBH I havent tried a 0-100mph sprint, mainly because it is illegal on public roads

and add to that getting a clear run. At Santa pod last year I did a standing quarter in 14.32 seconds before the remap and the terminal speed was 98.27mph. This equates quite accurately (using accelleration curve calc) at 14.5 seconds for the 0-100mph sprint. My estimate for a remapped 0-100mph would be somewhere between 11.8 and 12 seconds. The standing quarter being despatched in around 13.5 to 13.7 seconds.
Top speed is realtively immaterial whether standard or remapped unless you have either an airfield in your backyard or live in Germany. Having said that the ultimate gearing of the ED30 (and GTI) means that it is physically impossible for you to do over 187mph unless you change either the redline point or the gearing ratio's. 300bhp in most cars with a decent coefficient of friction (ie below 0.33) and enough gearing and revs will give around 160 to 165mph which could read as high as 180mph on the Golf GTI speedo.