Other than making it sound louder?
In: Technology
A car that has a front-engine/rear drive, and it sits close to the ground…a dual exhaust has a purpose. The early 1960’s Mustang and Camaro are a good example.
The base model had a six cylinder and a single exhaust. The performance version had a V8 which needed a bigger-diameter exhaust tube in order to prevent back-pressure in the exhaust, so the engine could breathe easy at high RPM’s.
The problem was that the early Mustang and Camaro did not have a lot of room underneath for a larger single muffler and exhaust pipe. The hot pipe should not be too close to the fuel tank, or brake hoses, or other things underneath.
By breaking the exhaust system into two separate runs of the same-size of tubing, you could easily fit enough breathing capability. Soon after that, the fact that a car had a single exhaust tube poking out, or a dual exhaust…it became a way to identify the “performance” version.
There are many examples of a vehicle model having a dual exhaust when it doesn’t need that. It’s just for show to make it look sporty.
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