Quote:
Originally Posted by Actros617
Is this common for a M104 to lag' at first and sudden rush of power at 3500 RPM (it feels like it has a turbo  ) or is my exhaust is clogged?? |
That's about the point when the intake manifold flap changes position but there is no way you could call it "a sudden rush" in my experience. More likely a slight power increase. Sounds like your engine is down on power at lower RPMs.