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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 09-30-2013, 02:13 PM
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Tyler04Hemi Tyler04Hemi is offline
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Default Headers and cats need quick help.

So I bought a set of pacesetter headers, long tubes, they came 3 inch outlet (ID,OD???), and I found a set of 3 inch (inner diameter) catalytic converters.

Does anyone know if the pacesetter headers are 3 inch inner diameter or outer diameter? and would these cats slip fit on the headers?

They are 300 cells.. Would 200 cell be more benefitial? they're going to be right at the end of the headers. After cats will be offroad y pipe.

Thanks!
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Old 10-09-2013, 08:06 PM
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any muffler shop will make it fit.. I have 3" pacesetters and my muffler guy just cut the ends of my cats to make them have 3" openings on either side and then just ran 3" piping all the way to muffler...
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Old 10-09-2013, 08:10 PM
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chefred112 chefred112 is offline
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I first had it welded on and then later decided to have them flanged so I could take them off every other year for smog tests...then I put real cats on

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one quick 05 hemi qc...with over 250k miles on odo... on the 5.7...stoker 6.4 now, new times coming
performance mods: yes 1/8 - 7.85 @ 93.20, 1/4 - 12.10 @ 113.96
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH
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