I have a DIY cold air intake on my Automatic...
If im lucky i get 200 miles on a full tank, but as of late i got 170 on a tank :/

any ideas as to why such a horrible drop?

im going to put the stick air box back in =[

 

You DIY intake probably isn't getting the air consistently.

 

Prob really screwing up the MAF readings. oh and 200 miles per tank is horrible as well. I get around 350 to a tank.

 

yea 300-350 if i decide to punch it or not

 

I'm at 350 to 400 but I drive like a grandma. I'm still breaking her in.