Here's a breakdown:
* Steel: The majority of exhaust components, like the exhaust pipe, muffler, and resonator, are made from mild steel. This is cost-effective and durable enough for most applications.
* Stainless steel: Some components, particularly those located near the engine where temperatures are higher, might be made from stainless steel. This is more resistant to corrosion and heat damage.
Other metals might be used for specific components, but these are less common:
* Aluminum: Lightweight and corrosion-resistant, but not as common due to cost.
* Titanium: Used in some high-performance exhaust systems for its extreme heat resistance and light weight, but very expensive.
The exact materials used vary depending on the vehicle's make, model, and intended use.
