Dual Exhausts - Do They Serve a Purpose or Pointless?

Does having a dual exhaust get better gas mileage, or does it just look cool? Why is getting the leftover air out of the cylinders faster important?

Exhaust Size Selection: It's A Little More Complicated Than “Bigger Is Better” - The Engine Block

Is a Dual Exhaust Louder Than a Single Exhaust? 2024 - Motor Cliff

Dual Exhaust Vs Single Exhaust: Pros And Cons

1990 Ford Mustang Classic Cars for Sale - Streetside Classics

Dual Exhaust vs Single Exhaust

Why Most Quad Tail Pipes Are Completely Pointless, News

Why in some cars there are two exhaust pipes? - Quora

Why do most new cars and SUV's have dual exhausts? Back in the day, most had a single exhaust unless it had a high performance motor. - Quora

What Is A Dual Exhaust System?

Dual Exhaust vs Single Exhaust