[holypaulie]

My aero experts, what would be the best air curtain in my configuration? Yellow horizontal slits in my fog light cover or red vertical slit next to it? The fog cover is high pressure area which would be good to release it, vertical is right at the curve corner of bumper on the other hand. Exit channelled air would hit the end of front tire as well. Is this configuration possible to work? I'm thinking to build external ones but prefer internal for stealth look. What mpg I can gain out of those?