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recommendations for mufflers.. opinions

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Old Feb 7, 2011 | 12:00 PM
  #41  
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This is a custom installation you have going on with 3" pipes so no it will not be listed as a bolt in installation.
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Old Feb 7, 2011 | 12:40 PM
  #42  
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Just got off the phone with Magnaflow - I told them what I had and said it was a chambered system and they didnt know what I was talking about - I was referring to it incorrectly. Anyways they said that to get rid of the sound / resonance would be to go with a completely new system with straight through pipe.

I spoke with Borla as well and they said the exact same things. They said that the way I have it now could really be hurting me as far as performance. Borla has nothing that would work with my car - according to them. Told me to go to Mid America.

Mark
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Old Feb 7, 2011 | 12:54 PM
  #43  
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Originally Posted by ultimix
Just got off the phone with Magnaflow - I told them what I had and said it was a chambered system and they didnt know what I was talking about - I was referring to it incorrectly. Anyways they said that to get rid of the sound / resonance would be to go with a completely new system with straight through pipe.

I spoke with Borla as well and they said the exact same things. They said that the way I have it now could really be hurting me as far as performance. Borla has nothing that would work with my car - according to them. Told me to go to Mid America.

Mark
Borla does not sale a "System" for our cars, but there mufflers fit as well as any out there... just measure the size you need... And the sound is amazing.... without drone!!!
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Old Feb 7, 2011 | 08:55 PM
  #44  
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Take it to a muffler shop and have it done the way you want. Personally I would loose the crappy chambered pipes and run 2 1/2" all the way back to the muffler of your choice. If you want bolt in kit, then Corvette Central sells a decent one.
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Old Feb 8, 2011 | 11:15 PM
  #45  
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Originally Posted by ultimix
Now the thing to choose to change -

1. Should I just add a muffler to my chambered system and see how it sounds? If it doesnt sound better than get the a complete system

2. Should I add a resonator to my chambered system to get a better sound. If it doesnt then add a muffler

3. Start over and get a complete new system

what cha think??

Mark
Mark, here's my 2¢ worth. I have Hooker Super Comp headers, and Mid America's chambered system - like this but not stainless http://www.mamotorworks.com/corvette-4-36-9217.html. It sounded like open headers. It sounded great, but way too loud for me. I couldn't get on it hard anyplace there were people for fear of attracting the law. The chambered system may be fine for stock manifolds, but I don't think they muffle enough behind headers.

I had two stainless Magnaflows installed in the stock location and they quieted the car considerably. They are mellow when I'm not on it, and bark when I get on it - nice, not too loud but sure noticeable.

I can't say there was any loss of performance, in fact it probably performs better because I can use more power without being a cop magnet. Would it perform better if I removed the chambers? Maybe, but I'm not going to find out at this time. I just looked for the part number of mine, and an unable to find it, but a good muffler shop can determine just what Magnaflow will fit our car.


Pete
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Old Feb 9, 2011 | 11:44 AM
  #46  
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Originally Posted by ultimix
Just got off the phone with Magnaflow - I told them what I had and said it was a chambered system and they didnt know what I was talking about - I was referring to it incorrectly. Anyways they said that to get rid of the sound / resonance would be to go with a completely new system with straight through pipe.

I spoke with Borla as well and they said the exact same things. They said that the way I have it now could really be hurting me as far as performance. Borla has nothing that would work with my car - according to them. Told me to go to Mid America.

Mark
I think sime if the ambiguous answers come from the fact that you are talking about a BB motor. I love my Chambers on my lightly modded SB. And I only have 2 short resonators and Headers. I put them on with the stock manifolds and when I added the headers it did not make them louder only a little deeper sounding.But with the BB and If I were you I would just add a set of good flowing mufflers with a lot of flow and very very open. That will undoubtedly tone it down. If you go with too quiet of a muffler the addition to the chambers will make it stock quiet I suspect. Just my 2 cents. Be sure to fill us in on what you do
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Old Feb 11, 2011 | 11:57 AM
  #47  
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To : 81Pilot

Just curious if you ever read this and have an opinion on it ?
http://www.superchevy.com/technical/...exh/index.html


I agree with the statement by the person who said the 5-10 HP loss from a muffler is hard to "feel" unless you have a race/drag car and need every HP you can squeeze out....

-ALF out...
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Old Feb 11, 2011 | 01:03 PM
  #48  
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Originally Posted by fazang
To : 81Pilot

Just curious if you ever read this and have an opinion on it ?
http://www.superchevy.com/technical/...exh/index.html


I agree with the statement by the person who said the 5-10 HP loss from a muffler is hard to "feel" unless you have a race/drag car and need every HP you can squeeze out....

-ALF out...
That was me ..I would rather have a car that doesn't sound like puke and runs just as good..but I am a stock kinda guy so to each their own..really neat article on flow..very long..I usually don't read that much!
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Old Feb 11, 2011 | 02:44 PM
  #49  
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Originally Posted by fazang
To : 81Pilot

Just curious if you ever read this and have an opinion on it ?
http://www.superchevy.com/technical/...exh/index.html


I agree with the statement by the person who said the 5-10 HP loss from a muffler is hard to "feel" unless you have a race/drag car and need every HP you can squeeze out....

-ALF out...
Very interesting read, very informative. The section about resonators was interesting as well. What most people refer to as chambers these days are in truth resonators with an inner diameter larger to allow for the flow, and fins that act as a pulse wave tuner. Mine are actually 18 inches long and are called resonators and act as such. I was intrigued by the idea of being able to add mufflers with no discernable HP loss after a properly tuned system. I think others that said Magnaflow straight through mufflers have no backpressure are shown by this article to be correct, but also how much more important correct size and placement has on the system before the muffler comes into play. I think before anyone builds an exhaust system, whether it is with resonators and no mufflers or resonators with mufflers or mufflers and pipes, they need to understand the dynamics involved between collector length, the right sized pipes, and the options in making the system sound and act they way you want it to. Very good read, thanks!
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