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Old Sep 13, 2013 | 04:41 PM
  #21  
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Here is a link to a muffler test that may be helpfull.

http://www.mustang50magazine.com/tec...o_numbers.html

I bought the Hooker Aerochambers 2,5" for my 454.

//Ricky.
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Old Sep 13, 2013 | 06:24 PM
  #22  
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I have Pypes Violators on my 81 and love them.
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Old Sep 13, 2013 | 09:41 PM
  #23  
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Originally Posted by Richard Cooper
I have Pypes Violators on my 81 and love them.
Not too loud? Im starting to be afraid the RacePros will be too quiet
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Old Sep 14, 2013 | 01:15 AM
  #24  
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I'll tell you, for an oval-type muffler, the internal design of the Cherry Bomb Vortex mufflers are really a neat design. Similar to something I've pondered building years ago, but I've never gotten into the oval muffler manufacturing. Sound clips I've heard of these sound really good too, & I know they flow well.
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Old Sep 14, 2013 | 08:33 AM
  #25  
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I've run Dynomax Super Turbos on my C3 since purchase in '97. I installed the 2nd set around 2002 and they sound great.
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Old Sep 14, 2013 | 10:49 AM
  #26  
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I have tried a few different mufflers out on my different vehicles over the years and I like the 50 series delta flow flowmaster. 40 series are really loud!
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Old Sep 14, 2013 | 10:58 AM
  #27  
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Originally Posted by Brcmpbl
N11s.
I run Dynomax on my hot rod LT-1. On the wife's 70 LT-1 we have Chevy RPO N-11 "off road" mufflers. The Dynomax are a little louder in all cases. The N-11 mufflers are perfect for a mild stocker or HP Vette.
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Old Sep 14, 2013 | 11:38 AM
  #28  
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I have Dynomax VTs. They have a spring loaded baffle that is closed at low flow and opens under heavy load. I like them, there is no drone at all. Quiet at cruise, low restriction & more sound when you step on it.

Some say the baffles rattle, mine haven't.
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Old Sep 14, 2013 | 05:21 PM
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Originally Posted by rafalc
Not too loud? Im starting to be afraid the RacePros will be too quiet
Not too loud for me, but I am a little hard of hearing. They do have a little drone to them at a constant speed, but not real bad.
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Old Sep 14, 2013 | 10:15 PM
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Swapped the sidepipes for Ultraflows 12 yrs ago and still pleased. I think the Ultraflows and Magnaflows are pretty close to each other both performance and sound wise.
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Old Sep 15, 2013 | 11:16 AM
  #31  
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Originally Posted by mac79vette
I have tried a few different mufflers out on my different vehicles over the years and I like the 50 series delta flow flowmaster. 40 series are really loud!
There's a huge difference between the Delta Flow series and the regular 40 and 50 series. I think Flowmaster has done a terrible job with marketing these. I have the Delta Flow 40 series on my 71 and love them. Best sounding car I've ever had.
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Old Sep 15, 2013 | 11:37 AM
  #32  
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I tried the flowmaster delta 50's and the drone was unbearable.
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Old Oct 3, 2013 | 02:57 PM
  #33  
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Im finally done with all the work.

You can hear the Pypes x-pipe system with RacePro mufflers here (last minute)

http://forums.corvetteforum.com/c3-g...c-montage.html
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