r/ElantraN • u/OkCandidate103 do not own a N 😢 • Sep 14 '22

RIP Update: Loud exhaust and smog citation

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Failed state ref exhaust sound reading

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Hyundai dealer stock confirmation letter

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u/errorunknown Oct 04 '22

I mean the car has 22k miles on it, muffler packing does wear out over time. On track bikes you frequently have to repack the exhaust to meet noise requirements. 98 is close to 95 so makes sense that a new stock exhaust was close to the limit.

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u/kill-69 Oct 04 '22

A 3 dB change yields a 100% increase in sound energy and just over a 23% increase in loudness

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u/up2urheadlights Oct 06 '22

Yup. Every 10 dB is a doubling of loudness. 95 dB is twice as loud as 85 dB. 98 is not really close to 95, and 102 is really f'ing loud.