Car appreciation... the aesthetics, the engineering, etc

I think for a plain single colour wrap it's around £1500^. Material costs are high so if you have an 850 then it's going to cost a bit more.

Have you ever seen a T5 without the engine light on complaining about the most minor of issues then retarding the map?

They'll do their level best to protect themselves- some of the maps from the more "fingers crossed" of tuners tend to wind in loads of timing, then leave it to the EMS to bring it back when the engine starts pinging.

Often what is needed is to clear the codes after some maintenance work- otherwise you end up with the car trying to protect you from a situation that no longer exists.