23.3-24.0 mpg in most recent hwy fill ups. 15.0-18.1 mpg in most recent city. But the “city” is a mix of comfort and sport modes. I have it recorded going back to November 2017 and have highs of 24.0 (above) and low of 13.8. Both are post-Cobb.Do you still get around 23mpg on highway in comfort mode with cobb?