Hello everyone, first time poster on this forum. I recently got a 2011 GT
with 30,000 miles. The car has a lethal GT tune, Steeda CAI with airbox, 3.73 gears, and axle-back Corsa Extreme exhaust. I have been noticing a very small amount of smoke coming from the back end of the car. It only happens when sitting at a light or something after running up to high rpms and lasts for a few seconds then stops and it might do this one or two lights in a row then nothing. It does not smoke under normal driving conditions, doesn't smoke when started, and no smoke under hard acceleration literally only when stopped at a light afterwards. It is also always on one side or the other and looks like its coming from more so around the tire/quarter panel area instead of the exhaust. Its hard to tell what the color is because it is so light sometimes its even hard to notice but it looks grayish and has a strong exhaust smell. The car does run rich with the tune but it runs great. Also I noticed it is consuming a small amount of oil in between changes but from what I hear that's normal for the 5.0's. Any information would be really appreciated!