GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Circle D installed

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Old Sep 24, 2010 | 03:11 PM
  #91  
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Originally Posted by iamkeniff
that's why i love my Magnaflow....it's straight through but not loud at all.
I liked the sound of your 14" cause it sounded damn loud

Originally Posted by KHester84
I'm sure the cutout will always give more performance rather than having to go through the entire exhaust system...straight muffler or not. I've got the corsa db 2.5"...not sure how restrictive it is but it sure screams at 5000+ rpm.
Totally agree, it's just difficult to find a way to quantify the flow restriction of a muffler, short of back to back dyno tests, and to a lesser degree, track testing. I wouldn't imagine an aftermarket muffler being that big of a restriction, so we may be splitting hairs. I'd expect an open cutout to be less than a tenth quicker than full exhaust, does this sound about right?
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Old Sep 24, 2010 | 03:48 PM
  #92  
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something is wrong with those times
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Old Sep 24, 2010 | 04:17 PM
  #93  
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Originally Posted by lowoh8
something is wrong with those times
I believe that's been confirmed.
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Old Sep 24, 2010 | 04:38 PM
  #94  
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Originally Posted by Preston129
I liked the sound of your 14" cause it sounded damn loud
yeah but merging and trying to ease through town....it was like a nascar!

the 30" muffler is smooth i cant hear it but everyone else supposedly can
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