Great craftsmanship but are either of this functional at all ? Will it rip off at 100+ mph ? Does it actually stop the air exiting the underside of the car from tumbling and swirling, reducing vacuum under the car? Air flowing under the car's front bumper compresses and speeds up to squeeze between the car and the ground. Does thisA diffuser create a tunnel or void in the floorpan that allows air to expand and create a vacuum under the chassis.
Again great craftmanship but does it work ?