you stated it was due to the "std ecu"

which is totally incorrect

we generally live map cars that are in for every bit of power they can get, or its a real odd spec with head work etc. we have had a lot of cars in for mapping on our off the shelf packages and we cannot better them with live mapping.

the fact remains, the rich running has nothing at all to do with the ecu as you keep implying, its the software on it.