Since the 1970s, catalytic converters have been standard on all American-made vehicles in order for car companies to meet emissions standards.

The intake air temperature sensor plays a vital role in a vehicle's exhaust system.

The muffler is one part of the vehicle that is hard to ignore.

The exhaust system in vehicles is a precarious one, and if the tailpipe ever becomes loose, you run the risk of losing not just the pipe, but the muffler as well.

Engines are massive pieces of machinery that tend to be pretty loud when they're running, which is why mufflers are installed on cars and trucks to keep sounds at a more polite, tolerable level.