Your vehicle's catalytic converter is vital to your car's exhaust system and overall performance. It's responsible for converting harmful byproducts into steam. Unfortunately, they naturally wear out over time. They are also commonly stolen because they are very valuable. When it's broken or missing, you may notice loud noises and a reduced fuel economy. It can also restrict your car's acceleration and power. Not to mention it is illegal to drive without one. If your catalytic converter is missing or broken, be sure to have it replaced by a professional right away.