12. Headlight Modifications
One of the least expensive yet fastest things you could do to mod your car is to change the headlights. With so many quality brand name replacement units, you can give your ride a facelift, but also get the best level of light and visibility. However, some people choose low-quality replacement headlights to save money.

And they not only ruin the looks, but they also reduce the visibility factor of their car. It is against the law to add headlights that are either too dim or too bright. Both the driver and oncoming motorists must be able to see.