F 150 2WD Pickup V8-4.6L (2002)
Muffler: Description and Operation
Muffler
Mufflers are usually treated during manufacturing with an anti-corrosive coating agent to increase the life of the product. The muffler reduces the
level of noise produced by the engine, and it also reduces the noise produced by exhaust gases as they travel from the catalytic converter to the
atmosphere.