If you need to replace your car's exhaust system, it will likely cost between $200 and $2,000. The price will depend on the make and model of your car, as well as the type of exhaust system you need. If you have a simple muffler replacement, it could cost as little as $100. However, if you need to replace the entire system, including the catalytic converter and pipes, it could cost up to $2,000. Some luxury cars or high-performance cars may even cost more to repair. You can expect to pay around $1,500 for a BMW exhaust system replacement, for example. When replacing your car's exhaust system, be sure to use a reputable mechanic or garage. They will be able to give you an accurate estimate of the costs involved and ensure that the work is done properly.