They probably said it was ok because it was ok on the dyno. They cant match exact load on the rollers as your car will have on the street. Especially if you use a bleed valve and you are already doing 4500 rpm plus (which is when most peoples turbo is making boost) and you floor it the boost will spike higher than what the vehicle was tuned at. Some tuners dont allow for this when they are tuning but in their defence some turbos and boost controllers dont work that well either.
You can correct it each time you drive by going in to settings scoll down to ign/inj press next, there will be a 0 highlighted next to the 0 says adj i think, arrow down twice and it should say -2 then press back until your on your monitor screen. This will take out 2 degrees of timing through the whole map. Once you turn the car off the ecu will go back to normal settings so this will need to be done every time you start the car. This will work until you have the timing removed from the area that is the problem.
Thanx Michael...