As a DIY car repair person, you understand the importance of knowing your vehicle's exhaust system. Sports cars have unique exhaust systems that require some knowledge to maintain and repair. Here are some things you need to know about these exhaust systems. 1. The Exhaust System Is Unique The sports car exhaust system is unique in that it usually features a dual-mode exhaust system that allows the driver to choose between a quiet exhaust note and a more aggressive exhaust note.