illegal mods

What is your dream car like? Do you dream of having huge speakers fitted at the trunk so you can bring the party wherever you want? Do you think neon lights under your car looks cool?

I know projects like applying a ceramic coating can be boring but before you modify your car to your liking, it’s worth your while to know which car mods you can have and which are illegal to do in the US. Below is a comprehensive list of those illegal mods.