Pretty sure the 2.0 only has an ignition coil and not seperate coil packs
Correct 
Ive got a 2.slow aswel, we get some stick for the GTI badge being on the back :embarassed:
Ive went through 2 MAF's so it could be that,
Ive had a mis-fire and that was plug leads so i changed all 4,
My lambda sensor went and that made a big difference to acceleration and MPG,
i do the throttle body every now and again coz sh!te builds up a fair bit
and when i got the car there was 2 cracks in the manifold so if i were you id just do the job and take it out, have a look and get it welded up if that is the problem
I have had a loss of power when shiftinmg up to 3rd after red lining a few times and i dont have a clue what that it?
Good luck with your problem thou
