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Kirkham Motorsports

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  • 1 Post By cobra 53

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Old 09-19-2014, 09:59 AM
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Default Chambered exhaust

Would anyone have a pictures of the 24" or larger exhaust mufflers on their car, Does anyone know if 20" to 24" will make that big of a differents in the sound, thank you for your help.
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Old 09-19-2014, 10:05 AM
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The general rule is the longer the muffler, the more surface area to absorb sound, which will make it quieter. This can be offset with a larger inside diameter, but if you want quieter then go longer.
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Old 09-19-2014, 11:48 AM
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Quote:
Originally Posted by Livnn View Post
Would anyone have a pictures of the 24" or larger exhaust mufflers on their car, Does anyone know if 20" to 24" will make that big of a differents in the sound, thank you for your help.
I'm certain the owner of Classic Chambered Exhaust will have answers to your questions. I recently had the 24" Cobra Power Packs installed by a fellow CC member, cobrakiwi. However, they aren't on my car yet. I had 20" mufflers prior.

Classic Chambered Exhaust Inc. · P.O. Box 424 · Milford, MI. 48381
(248) 889-HEMI (4364)

David

Last edited by 601HP; 09-19-2014 at 11:51 AM..
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Old 09-19-2014, 03:18 PM
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Classic Chambered Exhaust 24" Cobra Packs 3" ID with the flow mod. Love them!! BIg difference from what I took off. Changed my whole engine performance.
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Old 09-19-2014, 04:30 PM
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I replaced my 24" x 2 1/2" i.s. mufflers with Classic 28" x 3" a couple of years ago.
I love the new sound. Quiet at cruising speed. Good idle rumble. Loud at 6,000 rpms.

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Old 09-20-2014, 05:28 AM
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My NAF 289 with 302/carburatet is equiped with Classic Chambered No Packed Mufflers

Body 24" od 3.5"
Body in/out 3"
Flow path 2.5"

Idling 850 RPM up to cruising speed at 2200 Rpm pleased rumble tone.
But up from dear to 6500 RPM, it sounds like it have to sound under power.

[ame="https://www.youtube.com/watch?v=7OM-rj1nnTg"]https://www.youtube.com/watch?v=7OM-rj1nnTg[/ame]
[ame="https://www.youtube.com/watch?v=HATFnrmNLUM"]https://www.youtube.com/watch?v=HATFnrmNLUM[/ame]
[ame="https://www.youtube.com/watch?v=b0JMKDKes0I"]https://www.youtube.com/watch?v=b0JMKDKes0I[/ame]
TN Shelby Cobra likes this.
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Last edited by cobra 53; 09-20-2014 at 09:15 AM..
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