Hmmm. Just say NO!!!!
Rock chips can be greatly reduced by not following other vehicles too close, and allowing a "cushion" of space so that flying rocks will hit the ground in front of you before reaching your vehicle. Most hard-shell lens covers tend to distort/deminish light output of the headlights; thereby, degrading night-time visibility.
There is also a protective "film" available that can be custom-cut and applied to headlights/foglights; along with other cool stuff for motor vehicle enthusiasts, check out: www.griotsgarage.com
You can be right about following cars to close,but if the night time is the big issue here then i'll have HID installed to compensate the lack of light beam.
Here few guys did it & looks very good though to the point that police don't even bother to pull drivers for that any more![]()