# Doesn't sound right

**URL:** https://forums.speedlife.net/t/doesnt-sound-right/46663
**Category:** NYSpeed Automotive
**Created:** [April 11, 2008, 10:46pm UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663 "2008-04-11T22:46:54Z")
**Posts on this page:** 10
**Page:** 1

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### Author: ![greenbull](https://avatars.discourse-cdn.com/v4/letter/g/bc8723/32.png) [@greenbull](https://forums.speedlife.net/u/greenbull)
#### Post date: [April 11, 2008, 10:46pm UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/1 "2008-04-11T22:46:54Z")

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Give a listen to my exhaust and tell me what the random “blowing” sound is coming from exhaust. You can hear it better near the end of the clip. Something is definitely not right.

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### Author: ![9ONA3OOZX](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/9ona3oozx/32/7242_2.png) [@9ONA3OOZX](https://forums.speedlife.net/u/9ONA3OOZX)
#### Post date: [April 12, 2008, 5:40am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/2 "2008-04-12T05:40:58Z")

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where exactly is the sound coming from? fron of the car? engine bay? rear end?

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### Author: ![05OrangeSS](https://avatars.discourse-cdn.com/v4/letter/0/eada6e/32.png) [@05OrangeSS](https://forums.speedlife.net/u/05OrangeSS)
#### Post date: [April 12, 2008, 8:57am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/3 "2008-04-12T08:57:17Z")

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if thats still the stock exhaust, your car is fine. Mine did that ALL the time. Seems like its something with the factory system. Aftermarket ones never make that noise, plus you have the same mods that my car did it seems.

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### Author: ![IanK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/iank/32/5016_2.png) [@IanK](https://forums.speedlife.net/u/IanK)
#### Post date: [April 12, 2008, 8:59am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/4 "2008-04-12T08:59:01Z")

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kinda sounds like a misfire at idle

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### Author: ![Drexial](https://avatars.discourse-cdn.com/v4/letter/d/ee7513/32.png) [@Drexial](https://forums.speedlife.net/u/Drexial)
#### Post date: [April 12, 2008, 9:01am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/5 "2008-04-12T09:01:28Z")

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sounds like a build up of pressure being released. some sort of resonance that causes it to pop.

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### Author: ![greenbull](https://avatars.discourse-cdn.com/v4/letter/g/bc8723/32.png) [@greenbull](https://forums.speedlife.net/u/greenbull)
#### Post date: [April 12, 2008, 9:21am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/6 "2008-04-12T09:21:04Z")

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> [@90NA300ZX](#):
>
> where exactly is the sound coming from? fron of the car? engine bay? rear end?

in the clip you mostly hear engine noise from the front of the car. I was recording by the exhaust.

> [@05OrangeSS](#):
>
> if thats still the stock exhaust, your car is fine. Mine did that ALL the time. Seems like its something with the factory system. Aftermarket ones never make that noise, plus you have the same mods that my car did it seems.

> [@Drexial](#):
>
> sounds like a build up of pressure being released. some sort of resonance that causes it to pop.

hmmm i wonder if maybe i should go highflow or catless downpipe.

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### Author: ![05OrangeSS](https://avatars.discourse-cdn.com/v4/letter/0/eada6e/32.png) [@05OrangeSS](https://forums.speedlife.net/u/05OrangeSS)
#### Post date: [April 12, 2008, 10:50am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/7 "2008-04-12T10:50:43Z")

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just do the whole exhaust…catless dp seems like the way to go…

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### Author: ![Johnnyv412](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/johnnyv412/32/5226_2.png) [@Johnnyv412](https://forums.speedlife.net/u/Johnnyv412)
#### Post date: [April 12, 2008, 10:58am UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/8 "2008-04-12T10:58:06Z")

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sounds like no backpressure and its backfiring a little

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### Author: ![95VDUB](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/95vdub/32/5090_2.png) [@95VDUB](https://forums.speedlife.net/u/95VDUB)
#### Post date: [April 12, 2008, 3:22pm UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/9 "2008-04-12T15:22:46Z")

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Sounds like backfire/misfire to me.

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### Author: ![greenbull](https://avatars.discourse-cdn.com/v4/letter/g/bc8723/32.png) [@greenbull](https://forums.speedlife.net/u/greenbull)
#### Post date: [April 14, 2008, 2:05pm UTC](https://forums.speedlife.net/t/doesnt-sound-right/46663/10 "2008-04-14T14:05:23Z")

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new plugs seem to have fixed the problem. i’ll know tonight after i get on it some and tweak it a bit.
