The exhaust back box, or rear muffler, is responsible for reducing the noise generated by the gas as it flows through the exhaust system. In vehicles such as the CHRYSLER SPITFIRE, the rear muffler is typically located at the end of the exhaust pipe. With proper maintenance, the exhaust back box can last for more than 80,000 kilometres. However, the lifespan of your vehicle’s exhaust rear box may be shorter depending on how you drive. If you mainly use your vehicle for short trips, the back box temperature may not rise frequently, leading to condensation and possible corrosion. Therefore, it is important to keep an eye on the condition of the back box. If you notice cracks or an excessive amount of noise when accelerating, the back box may be damaged. You can inspect the component yourself to determine the extent of the damage. If corrosion has caused holes in the exhaust back box, it must be replaced as soon as possible to prevent further damage to the exhaust system.