I would not remap immediately either.
Wait for engine to settle in, mine is noteably quicker now that it is 12 months old and has done 12,000 miles.
I will remap mine when it is 3 years old as well.
Bluefin for approx £550 or VW Racing package inc exhaust and filter for approx £1500 depending on budget at the time.
I will probably add uprated anti roll bars and shocks as well to compliment the upgrade.