Your exhaust is exiting right under the center of your car. Not only is it excessively loud, but it also means the hot exhaust gasses are getting let out where they’re not supposed to. Depending on your car that could melt wires, hoses and do other damage to your car, even a short drive to the mechanic could do some damage. But if you find that your cat has been stolen, you’re probably in good enough shape to drive to a nearby shop.