Sorted this one boys...
I was running Bosch Super 4's for plugs with a snd plug gap.
Spoke to M.A.D. told me my overboost limit on my chip was 1.5 bar and asked what plugs i was using?? told him the above and he laughed.. told me to bang some NGK's in with a gap of.28mm and bobs your uncle and susans your auntie away we go with 17psi of boost and as smooth as you like through the power now
whaaaaaaayyyyy.

CheeRS for the replys lads.....

Adi..