Aerodynamic Vortex Tab

thingiverse

I've been concentrating on the aerodynamics and weight of my truck lately due to highway driving. This is a design closely linked to the Airtab seen on many trucks, which could potentially save up to 4% mpg on your next drive over 40mph. It's a relatively straightforward design. Most likely adhere this with 3M double-sided tape or anything that will stick well to polyurethane.