if i was you danny id find your local rolling road and ask them to do a dyno run, to be honest i didnt see a big difference at first (it can take a few cycles for the sensors to adjust to get the full effect). now itv done a few hundred miles i can now, it picks up alot quicker. Quick question and i a point to everyone who is thinking of having this done, before you get dpf removed and remapped make sure you get the dpf pressure sensors reset to 0 or it will contine to count up and throw a light and warning on the dash. I was never told about this and had to spend a full day at a jaguar dealership plus £40 worth of diesel as they had to drive it to reset the computer. cheers ricky