AuroraGirl
I'm Awesome
NVH is the primary purpose, changing the noise not so much making it lesser
think of an exhaust resonator, heres a quick copy paste on their function
The engineers realized this and decided to look for a way they could take advantage of it. They learned that if they designed an empty chamber for the exhaust to travel through, the pulses would bounce around in there — resonate — and some of them would cancel each other out. As luck would have it, the annoying higher tones were more likely to be canceled out
think of an exhaust resonator, heres a quick copy paste on their function
The engineers realized this and decided to look for a way they could take advantage of it. They learned that if they designed an empty chamber for the exhaust to travel through, the pulses would bounce around in there — resonate — and some of them would cancel each other out. As luck would have it, the annoying higher tones were more likely to be canceled out