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How to cancel the rasp noise????

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Old 04-27-2010, 05:55 AM
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sam2944
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Default How to cancel the rasp noise????

Hello guys. Need your help about how to eliminate the "rasp" noise. I installed headers, test pipes, cancel the resonator and add 2" all the way from catback. I was told that installing back the oem catalyst will cancel the "rasp". Support please............
Old 04-27-2010, 06:07 AM
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Ruthless18x
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If you let the car warm up the rasp will pretty much go away. You can swap the test pipes out for high flow cats as well, if you can't handle the rasp.
Old 04-27-2010, 06:27 AM
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MODDEDZ
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Does you exhaust have a muffler? Get rid of the test pipes and get either hgih flow cats or if you if you got the cash, then get the Fast Intentions resonated high flow cats.
Old 04-27-2010, 06:28 AM
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badkarma85
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Cancelling the resonator generally means rasp..

See here: http://auto.howstuffworks.com/muffler4.htm

Test pipes may or may not contribute to the rasp- I'm running them with my stock exhaust and there's no rasp...

However, when i combined the test pipes with an after-market exhaust, there was an increase in rasp
Old 04-27-2010, 07:07 AM
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T_K
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Originally Posted by sam2944
Hello guys. Need your help about how to eliminate the "rasp" noise. I installed headers, test pipes, cancel the resonator and add 2" all the way from catback. I was told that installing back the oem catalyst will cancel the "rasp". Support please............
Put the largest inline resonator you can fit back in the OEM location, or at least as close to OEM location as possible. The completely stock exhaust rasps when the OEM resonator is removed. I can't prove that it will eliminate all rasp, but due to it's effect on the OEM exhaust alone, I can't imagine it's absence is helping at all.
Old 04-27-2010, 07:25 AM
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davidv
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Rasp is your friend. Do not fear rasp. Learn to love it. Make it your own.
Old 04-27-2010, 09:25 AM
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dewitt00
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Originally Posted by davidv
Rasp is your friend. Do not fear rasp. Learn to love it. Make it your own.
nicely said
Old 04-27-2010, 12:31 PM
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aloh
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Originally Posted by Ruthless18x
If you let the car warm up the rasp will pretty much go away. You can swap the test pipes out for high flow cats as well, if you can't handle the rasp.
+1

Rasp will reduce a bit when the exhaust warms up. It wont go completely away but it wont sound as raspy.
Old 04-27-2010, 01:16 PM
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s31t8n8
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just press the cancel button
Old 04-28-2010, 08:07 PM
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dhays
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Originally Posted by sam2944
Hello guys. Need your help about how to eliminate the "rasp" noise. I installed headers, test pipes, cancel the resonator and add 2" all the way from catback. I was told that installing back the oem catalyst will cancel the "rasp". Support please............
Don't worry about it. If you keep driving the car as is, pretty soon you will be so deaf that you hear the rasp. Problem solved. In the mean time, just crank up the volume of your music to compensate.
Old 04-29-2010, 06:26 AM
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Brrcats
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you could always get the magnaflow x-pipe, others have reported a serious decrease in rasp after installing it
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