On average, installing new fog lights with a professional mechanic will cost anywhere from $150 to as much as $450. On a forum thread at PILOTEERS.org, forum members indicated that fog light installation could cost around $180 to $255.

Do you need fog lights legally?

All cars must be fitted with rear fog lights as its a legal requirement. If your car has been imported, it will need a rear fog light before it is allowed to be used on the road. Front fog lights are not a legal requirement, but if your car has them you should only use them when visibility is severely restricted.

Why is underglow illegal in California?

Californias Department of Motor Vehicles (DMV) regulates neon underglow lighting. The DMV permits LED lights which emit a diffused non-glaring light which is less than 0.05 candela per square inch (1 candela is essentially equal to the light emitted from one candle).