Get the intake manifold - cylinder head gasket. You should be able to reuse the metal EGR gaskets. The intake shouldn't be too bad but how slow is it under 2000 rpm? Normally low power is more noticeable at higher requested power and rpm.
It's not hard to unbolt the EGR and have a look. Some build-up is normal, but if soot is your performance problem, you'll know it.It is guttless when taking off ,also
I can only get 160 Km / 100MPH at top speed on the highway ,should it not do better then this??
I am stumped ,I am told that it could be ,EGR,Intake needs cleaning,MAF,Turbo ,cam ...
I just unpluged the MAF and took it for a good hard run and no change at all .