Welcome to the site.
I'm sorry to have to shoot you down right off the bat, but if you somehow make an engine that burns 100% of the fuel, you'll probably see a mileage improvement of about .5 to 1%. Modern fuel injected engines burn very very close to all the fuel put into them. So, unless your vehicle is still carburated or has a very old fuel injection system, your time is best spent elsewhere on things like aeromods.
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