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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 09-05-2013, 08:02 PM
Arnesto Arnesto is offline
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Default Stock 07 Exhaust

Hey there,

I did a search and couldn't find the answer to my question, also a google search couldn't really help either to what I think is a pretty simple question..

I have an 07 1500 Sport. I want to put in a flowmaster 40, but I see ones with dual in single out, single in single out... I know it's 3" in diameter. My question is does it matter if I buy a dual in, single in, etc.? What is the stock in/out on an 07?
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Old 09-05-2013, 10:23 PM
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Can you look up under your truck and see what you have?

I deleted my Y pipe and got a DI/DO.
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Old 09-08-2013, 08:12 AM
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The inlet to the muffler is 3" and the outlet is 3", if you are keeping it stock and just replacing the muffler you need 3"SI/3"SO. Now if you buy a muffler that can be reversed, you can cut out your Y pipe and run 2.25"DI/3"SO, that will eliminate the restrictive Y and run the mid pipes straight to the muffler so the muffler becomes the Y pipe. I you want loud and cheap, I removed the muffler and ran just the rear resonator on my 07 for a short while, it sounded pretty good but was quite loud.
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Old 09-08-2013, 09:13 AM
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I did a single in/Dual out on my old 06

Inlet


Outlet


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Old 09-09-2013, 09:49 PM
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Thank you all! Big help. I looked underneath it is single in single out, center on both. Thanks again!
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