intake and muffler worth the mpgs??

[petrified.rabbit]

more air = more fuel. opening up the intake and exhaust will result in more fuel being used.

[mgwalker]

right now im getting around 30mpg .. i live in southern ohio so its all curvy hills and city driving.... hwy before was worse but i was driving 70 and aveos dont seem to enjoy being that speed for effiency..

i thought if ur motor is more efficient it would enhance gas mileage. idk i had a lt1 camaro before so im new to the mpg scene. lol thanks guys