Will try to explain but not sure how good i am at this

My problem is my car doesn't feel it is driving like it should, when coming of the accelerator even just to slow the car down i get a judder (no brakes or gear change) happens all the time and sometimes it's pretty harsh - even at slow cruise i feel judder under foot

The car pulls well thru the gears no probs turbo sounds good.

Recently done to the car, Oil & Filter, 02 Sensor & Maf Sensor, Cambelt & Tensioner Kit (New Spark Plugs to fit)


Does any1 have any ideas? Can Boost Solenoid or a Boost Leak cause this? Or am i way of the mark?


Cheers