Im only getting about 11.5mpg average, shouldnt i be at least around 13.5-14 at least? I drive my ss like my grandpa drives most of the time and the gas mileage blows. What would cause such a low number? I have a bone stock 07 AWD. Is there something that could be causing a loss somewhere? Ive now had 2 different MAF sensors on it due to an ieat cai. even putting the intake on didnt make a difference. And I know, it wont help much without a tune but its gotten 11.5mpg avg since i bought it. Any ideas? suggestions?