Its about what I expected. (had to use a litre/100km converter for all you non metric people).

City - 20mpg
Highway - 31mpg
Combined -22mpg (I drive mostly city)

 

2013 GT Auto (standard gears), Airraid CAI, Flowmasters and Eibach pro-plus system. I've averaged 20MPG exactly since I've owned it and usually average between 19.x and 22 depending on my driving. I'm almost always over 21 average per tank, but the overall average doesn't change much until a lot more miles at the higher per-tank average. I'm right at 9k miles since I picked her up.