Q: How do the deflectors attach and stay put at highway speed?

They mount with the included mounting kit to the outer ends of the front lip spoiler and around the factory bumper vents, integrating into the car’s existing aero profile so they sit flush. The prepreg construction keeps them light and rigid, which helps them hold their shape and position under airflow. Follow the install steps and they stay planted at speed. Add PPF over the finish afterward to protect the leading edges from stone chips.