Originally Posted by ajmillan
There i think you should be able to preview now, also my mpg seem to have decreased with light driving conditions.
Log looks fine except for the underboost. You can download the high wastegate (HWG) version of the map from the maps section at cobbtuning.com. Use the AccessPORT Manager software to transfer the downloaded map from your computer to the AccessPORT and reflash it to the car.
Mileage should not be notably impacted by these maps, but you will have more power across most of the RPM range, so if you take advantage of that to accelerate faster than you would before, mileage could decrease a little.