As the title of the thread says really.
After a load of research about tuning boxes over maps I've decided to go with a box from TD1 Tuning.
Why a box over a map?
I realise there are boxes out there that are no more than a resistor in a fancy plastic box. TD1's don't appear to be that.
These seem to have some very positive reviews and after having spend a lot of money on maps in the past I like the idea you can send it back and they will re-programme it for your next car and fit new loom adaptors on it for around £100.
I expect a lot of negative posts regarding my choice but it's arriving today, I do at least 500 miles a week so it will be interesting to see if it lives up to the claims.