Anyone able help me out please I have a 63 plate audi a4 black editon with what I believe is a aftermarket exhaust fitted and what the car seems to do sometimes wether it's hot or cold is from a standstill pull off the car almost feels like it's being starved of fuel and it splutters then the power comes back and drives fine the car only has 44k on the clock, had anybody else had this issue before I Also have no idea if the car has been remapped or not.,been told from the dealership it's a common problem with the 1.8tfsi models Any help is much appreciated. Thanks