My GTI also suffers from thsi 'fuel cut' type intermittent sensation when occasionally in the high revs, and my car is (afaik) on standard map.
I have a twintake fitted but it suffered from this problem before the kit was fitted. VW have logged no faults and say they will not change plugs until 60k
Which plugs are recommended for a standard GTI, as an improvement over factory fitment?