The best mpg's I've gotten were with the drop-in filter, lid on, snorkel delete, and flap cut (behind the d/s whisker). Anything before or after has been less for my commute. If I was making highway/interstate commutes then the Newmission I did after would probably be better.
Sent from my stupid phone.
FocusFest 2013: Best of Show
Gateway FFW: Show Class Outstanding
September '13 ROTM
Hatch Nation #161