Question: what are the exhaust parts?
Answer: Exhaust Manifold. The exhaust manifold connects each cylinder to the main exhaust pipe. ... 
Exhaust Joints. Slip-fit tubes that comprise your exhaust system are secured by exhaust joints. ... 
Hangers. ... 
Oxygen Sensor. ... 
Catalytic Converter. ... 
Muffler. ... 
Cat-Back Exhaust System. ... 
Axle-Back Exhaust System.