0-100 times is mid to late 5s from my research - subject to wheelspin. In the real world, it feels very fast. 2nd to 3rd gear is the best representation of the difference IMO.

Best benchmark I think is my brother in laws BMW 335i - that is a late 5 sec car and I think an APR Stage 1 on a GTI now keeps up with it, or may be even quicker at lower gears due to less weight.