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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 03-19-2013, 05:15 AM
Viper15 Viper15 is offline
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Default Exhaust question

I have a 07 4dr 1500 with 5.7 hemi. I bought a cat back MBRP dual exhaust. 1 muffler split to 2 tail pipes. has not arrived yet. My question is the cats are up by the manifolds right ? Then there are 2 round mufflers under the cab and bed then another after the rear. Im new to dodge its my first. Its a great truck.
MY question is should both mufflers under the cab come out? I'm not sure how long the pipes are with the cat back kit. If both should come out. Then they are out of there. Just not sure because kit is not here yet.

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Old 03-19-2013, 08:09 AM
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I am not following what you are describing. have any pictures? maybe we could help you out more.

I think the two "round mufflers" under the cab you are talking about are your cats. then you should have one muffler.
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Old 03-19-2013, 10:19 AM
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The two round mufflers under your cab are actually your cats, if I understand you correctly. Leave them on if you have emissions checks and you do not have a tuner/programmer. Your other option would be some 02 sensor anti foulers if you remove the cats..
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Old 03-19-2013, 10:20 AM
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^^What gonefishing776 said^^

One giant muffler, and two cats towards the front
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