Right,

For about a week now my car has felt like its holding back when i accelerate after about 2000 revs.

Up to there its fine and then it feels like someone is pulling it backwards and my car is struggling. Its not mega noticeable but is still there. It reaches top RPM fine etc.

I thought it was turbo so i put new turbo on, but the car isnt boosting at the mo (which i will sort) but even as a standard 1.6 i feel the car hesitating

What could it be?

Its going in MSD tomorrow so fingers crossed they can check it.