Having a good working exhaust system is important for fuel mileage along with the environment and the safety for the people around you. Your BMW’s exhaust system carries away the fuel and air that are burned in your car’s combustion chamber, thus creating gas. Gases are harmful to the people around you and to the environment. Frequent checks to your Porsche's exhaust system is recommended. One thing you should look for is for no holes in the exhaust system or in the passenger compartment where exhaust fumes could enter. Check out our exhaust systems and get maximum performance and superior sound for your Porsche.