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whats the difference between slp loudmouth and slp dual dual?

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Old 12-26-2011, 04:27 PM
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Default whats the difference between slp loudmouth and slp dual dual?
What's the difference? I am looking at a used catback and the guy says it is not a loudmouth it is a dual dual. I thought SLP only made loudmouth. And dual dual referred to the tips. Please help guys. And if anyone has it how does it sound?
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Old 12-26-2011, 04:35 PM
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It is the stock catback for the LS1 SS Camaro, and Firehawk. It sounds nothing like the Loudmouth. It has a muffler in the stock location, with the same tips as the Loudmouth. The Dual Dual is a pretty nice catback.
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Old 12-26-2011, 05:03 PM
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The dual/dual is very quiet, and the loudmouth is ....
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Old 12-26-2011, 05:06 PM
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Great thanks a lot guys.
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Old 12-26-2011, 05:26 PM
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Originally Posted by Coy
It is the stock catback for the LS1 SS Camaro, and Firehawk. It sounds nothing like the Loudmouth. It has a muffler in the stock location, with the same tips as the Loudmouth. The Dual Dual is a pretty nice catback.
mine came with it as an option.(SLP DD)



i still have it.
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Old 12-26-2011, 05:34 PM
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Originally Posted by Coy
It is the stock catback for the LS1 SS Camaro, and Firehawk. It sounds nothing like the Loudmouth. It has a muffler in the stock location, with the same tips as the Loudmouth. The Dual Dual is a pretty nice catback.
Yup, I'm pretty sure this is because the SLP Dual/Dual catback is not a complete straight through design like the Loudmouth is.
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Old 12-26-2011, 06:12 PM
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My car came with a single outlet 4 inch mufflex that looks like a duramax exhaust lol. Which would be better. Flow wise. With lts and ory how quiet will it be.
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Old 12-26-2011, 06:56 PM
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Just to clarify my earlier response, the DD was an SLP option for the SS, but standard for the Firehawk. I believe the Mufflex will flow better than the DD.
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Old 12-29-2011, 12:24 AM
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my dual dual is LOUDer than my friends LM1
he has a stock ls1

i have a 6L with longtubes, ORY, 23x/24x 115 cam
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