If your muffler is rusted out and/or hanging low beneath your vehicle, then it sounds like your exhaust system is ready for some repairs. Muffler repairs require specialized tools such as a welder to repair correctly. If you don't own a welder at which you have some experience, you really are better off taking your car or truck to a muffler repair shop. While there are some products on the market to fix exhaust system leaks temporarily, you can save that money if you go ahead and have the muffler fixed professionally. For those that do have a welder and want to repair their own exhaust system or install a performance muffler, for example, we offer resources for the do it yourself person to properly make exhaust and muffler repairs.