I am noticing more and more that sometimes it feels like the car is holding back, I apply the accelerator and nothing then suddenly all the power comes at once and it goes off like a rocket. It's not turbo lag as it's holding back around 2200rpm and it does not do it all the time it's a bit sporadic. The cars remapped, has a fairly new DPF a new Turbo with only 3000miles on new fuel filter air filter oil change etc. I give it a good thrashing so happy there is no soot build up. Could it be EGR related?