Volvo under hood air flow

[Magard]

I have this idea of makeing some vents at the back of the hood kinda same principle as the freightliner century does for air flow. I'm thinking like a stainless steel viser looking piece mounted vertically along the trailing edge for the hood with the hood cut out underneath to allow air to escape like the century freightliners do. Any thoughts on this. Seems like if you could give the air a path to take it might really help these trucks.