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catback vs muffler swap

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Old Mar 19, 2009 | 07:14 AM
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WS6 MIAMI's Avatar
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Default catback vs muffler swap
Please help me... I have a 2001 WS6 with long tubes and a ORY. It is attached to my stock catback. I want a better sound and less restriction. What is the difference if I replace just the muffler with a magnaflow muffler vs buying a complete catback. Oppinions please!!!
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Old Mar 19, 2009 | 08:08 AM
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not really a difference if you get the same magnaflow muffler. Magnaflow is a great choice by the way!
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Old Mar 19, 2009 | 08:46 AM
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Catback gives you 3" in, dual 2.5" out. Using a muffler with your stock pipe is 2.75/2.25" in/out. So a little better flow with the catback.

BTW, Hooker makes both the catback size muffler and the stock replacement. Thunder Racing carries both. I have catback size muffler only on my T/A with fabricated 2.5" tailpipes.
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Old Mar 19, 2009 | 08:46 AM
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2.75" compared to 3" is a 16% increase in diameter....so pretty considerable amount of flow.

i say go for the catback
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Old Mar 19, 2009 | 06:03 PM
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Thanks for the info. Catback it is!
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Old Mar 20, 2009 | 02:12 PM
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Or you could just re pipe from the Y. Probably cheaper...
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Old Mar 21, 2009 | 08:45 AM
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Keep the stock catback and add an electric cutout. Best of both worlds, and cheaper. Replace the Y with 3" pipe all the way to the cutout when you have it welded, then stock pipe behind it.
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Old Mar 21, 2009 | 01:26 PM
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I had a 01 ws6 catback w/ a high flowing dynomax superturbo muffler...I swapped it for a LM1 and felt and instant sotp gain along w/ a great sound
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Old Mar 21, 2009 | 10:43 PM
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re-pipe ... Great idea!
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Old Mar 22, 2009 | 12:38 AM
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Originally Posted by WS6 MIAMI
re-pipe ... Great idea!
Was that sarcasim?
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Old Mar 22, 2009 | 10:28 AM
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I have just the muffler #12267..check my sig...it works.
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