Originally Posted by
Zooty
Well mine was about 30mg when I got it, but after a Cold Air Intake, which has no silicone piping from the tube to the engine head, now gets just over 22 i wanna say..

If anything, a CAI should increase fuel mileage. Something else is causing a dramatic drop like that.
My mileage averages 24-26 mpg on gasoline and 18-20 mpg on E85.