Does dual exhaust need two catalytic converters?

A vehicle will have a catalytic converter for each exhaust pipe. While most cars will just need one, dual exhaust vehicles will need two. Catalytic converters became the norm after 1975, and most dual exhaust vehicles have V8 engines.

What cars have true dual exhaust?

Right. The only cars that I know of that have true dual exhaust are Pontiac Grand Am, Pontiac Trans Am, and Chevrolet Camaro.
2. I’m assuming you’re asking why they are considered true dual exhausts. The reason is that they have two pipes going into two converters out to two pipes and finally to two mufflers.
3. January 7, 2003

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Why do cars have two silencers?

Dual pipe or double silencers are often used on high performance cars as they have greater displacement than regular commuter cars. This allows exhaust gases to exit the engine more easily, improving engine breathing.

What does dual exhaust look like?

A dual exhaust system is characterized by two tailpipes on the rear bumper instead of one. This is often seen on sporty cars, or even cars that have been modified to look more sporty.

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What size exhaust pipe is best?

What Size Exhaust Pipe Should I Use?

The quick and easy way to choose what diameter pipe you will need from the headers to the mufflers is to go back to the old rule of thumb, that for every 100 horsepower, 1 inch of total pipe diameter is needed across the system.