In a motor vehicle, an exhaust system is a piping used to guide exhaust fumes away from the engine - usually to the rear of the vehicle. A properly functioning exhaust system not only sounds better, it is better - for you, your car, and the environment. Most people know what a muffler but not everyone knows the a catalytic converter could cause a check engine warning light to come on. If you hear an exhaust noise or see a check engine light on your dash we are here to help. Fairfax Auto Repair has expert technicians to service your car's exhaust system.