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  #1  
Old 04-14-2007, 02:30 PM
duetsch65 duetsch65 is offline
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y-pipe and exhaust flutter

I just had y-pipe changed and am now experiencing the dreaded exhaust flutter. I have 2004 v-10 with Magnaflow cat-back exhaust. I enjoy the added performance but the flutter sounds like crap. I eventually was going to go with headers but am now rethinking strategy. Has everyone that has changed y-pipes experienced the exhaust flutter or do different y-pipe conversions make a difference? Will headers make it worse? Thanks for any input!
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Old 04-14-2007, 02:38 PM
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Yeah, I have flutter but only at certain RPM and throttle settings. I can't really hear it unless the windows are down and I'm next to something that will reflect the sound back to me. I like the added mid/high rpm punch I have now. Most of the time the Banks drowns out the flutter anyway.
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Old 04-14-2007, 02:46 PM
duetsch65 duetsch65 is offline
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Thanks for reply..I guess it's time to get headers or a better stereo system. The performance gain far outways the noise gain!
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Old 04-14-2007, 03:34 PM
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duetsch65 --

What brand y-pipe? Or is it a custom made?


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Old 04-14-2007, 04:53 PM
Antelope V-10 Antelope V-10 is offline
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duetsch65, Same thing here after my Y-pipe mod. 1900-2200 on hard accleration will do it every time. Roll on the gas lightly and no noise. From what i can gather from others here with headers, they make no flutter noise.
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Old 04-14-2007, 09:58 PM
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Actually NoMo has said many times that the addition of his Banks power pack (new headers and Y-pipe) produced the "flutter" as well as raised the entire sound of the exhaust in the cab.
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Old 04-14-2007, 10:19 PM
Antelope V-10 Antelope V-10 is offline
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Quote:
Originally Posted by Monsta
Actually NoMo has said many times that the addition of his Banks power pack (new headers and Y-pipe) produced the "flutter" as well as raised the entire sound of the exhaust in the cab.
Hmmm, talked to others who say just the opposite on flutter, but yes an increase in cab noise. I think the cab noise is why mizzmitch went to Thorley headers and dumped the Banks.
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Old 04-14-2007, 10:40 PM
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Hmmmm is right. Oh well... Guess we'll wait for Krewat's report on flutter. Oh wait...I think he's using the stock Y-pipe.
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Old 04-14-2007, 11:38 PM
Antelope V-10 Antelope V-10 is offline
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Just an old post.........

http://www.ford-trucks.com/forums/45...h-headers.html
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Old 04-15-2007, 12:26 AM
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I'll be using the stock y-pipe after the headers as a test-bed.

When I do modify the y-pipe, the stock will be measured, and I'm going to try to keep the length the same on both sides of the "Y" - which is quite a feat.

I think the "flutter" is because of the y-pipe being unequal length, or too short or too long of a run before the merge.
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Old 04-15-2007, 12:28 AM
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You know, I also get a drone at 1700-2000RPM under a very light load.

Is that "flutter"?

After being here for 6 years, I still have no idea really what the exhaust "flutter" is...

I might enjoy it
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Old 04-15-2007, 12:46 AM
Antelope V-10 Antelope V-10 is offline
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To me and my ears, it sounds like an exhaust leak. But, no noise before 1900 rpm and no noise after 2200rpm.
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Old 04-15-2007, 11:31 AM
duetsch65 duetsch65 is offline
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Thanks to everyone for the feedback by the way it was a Summit brand y-pipe
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Old 04-17-2007, 12:09 PM
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Is there really a power gain?

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Old 04-17-2007, 03:51 PM
dunerunner dunerunner is offline
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What about the folks with the e-bay Y pipe do you get the flutter also?

Like asked above for us 2 valvers is there a power gain?

I was ready get these done but now ya got me second guessing again? Agh!!
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Old 04-17-2007, 03:51 PM
 
 
 
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