Exhaust Systems Explained

A vehicle’s exhaust system channels engine gases out of the car. The design — single or dual — affects airflow, performance, cost, and maintenance.

Single Exhaust

• What it is: One pipe expels gases.

• Benefits:

  • Lighter and simpler design.

  • Less expensive to install and maintain.

  • Common in most standard vehicles.

Dual Exhaust

• What it is: Splits gases into two separate pipes.

• Benefits:

  • Better engine airflow.

  • Can increase horsepower and fuel economy.

  • Sportier look and sound.

Key Differences