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do headers on a 7thgen with aftermarket exhaust make it sound significantly louder? or can you barely tell the difference? i want to know because im getting a civic soon and i dont want the pigs to hear me from a mile away...
plus im not really into excessive exhaust noise anyway..

 
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well i had header, high flow downpipe, and 2 1.2 piping to a apexi exhuast and my boy could hear my about a mile and a half away from his house. and i only live 2.5miles away.but cops dont bother me. they didnt either then or no, and now its quieter now since i turbod. just sounds mean.nic e deep tone.

 
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the cat back will not make it to loud as long as you get one rated for under 95db. Once I added my high flow cat, it got LOUD, you can hear me comin from probley over a mile away if im at like 6800rpm. I hear that headers make it a little bit deeper but not louder.

 
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well i got a hp 4-1 header with cat replacer and a nvidia catback exhaust
this sounds like this....
http://users.pandora.be/r-speed/IMG20002.MPG

 
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It will make it noticeably louder


PM me if you need a hook up on the parts

 
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dB noise levels mainly vary on the muffler/exhaust system. header wouldnt dramtically increase the overall tone and sound level of the vehicle.

aftermarket header + OEM exhaust = same sound level
aftermarket exhaust + OEM header = increase of dbs, change of tone, louder

with aftermarket header AND exhaust, the header would most likely increase the overall sound level slightly.


a hi flow cat or no cat at all on the other hand will dramatically increase your overall sound level AND tone. i ran no cat with stock exhaust and my exhaust sounded a little aftermarket in the high rpms.

 
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Nope, i ahve a cat back, and a header but i have my cat, sounds good but is very quiet