If you’ve been around cars for a long time it’s likely you’ve made some modifications to your favorite rides. Whether it’s something as simple as tinting your windows to giving your muscle car a little more horsepower, car mods let you express your love for everything automotive, and make your daily driver a space you really want to be in. Modifications can also be a fun challenge for the DIY mechanic who wants to learn more about their vehicle’s motor and get the best performance out of it. Car mods make yours stand out among the rest. As fun as they can be, some modifications come with a lot of risks — specifically, legal risks. Not every modification you see online or in magazines is legal for street cars. Here’s what you need to know before getting to work.