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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 06-04-2013, 09:41 PM
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msorbara10 msorbara10 is offline
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Default Looking to buy magnaflow cats. What ones?

Well for a while now I had vibrating coming from my exhaust in the front. at first I thought it was the manifolds which I was happy about because it gave me an excuse to buy headers. But it turns out there are no leaks coming from there and I am pretty sure it is coming from my cats because I can always hear them coming from the passenger side.

They must have broken internally and I can tell my idle isnt as strong as it should be. So I would like to buy magnaflow cats so when I put my headers on, I will have the shop install thoes as well along with my new Y-pipe. I think Ill keep my flowmaster super 40 in there only because I only got 3k miles on with it.

But can you guys give me a link of what cats I will need for my truck
I have an 04 ram 2500 hemi. Has 2 cats
How much will they cost me?

Thanks
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Old 07-04-2013, 11:01 PM
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bump. I'm in the same situation need to know pipe size
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Old 07-05-2013, 10:27 PM
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I think you can order ARH high flow cats with off-rode Y. I don't know what kind of headers your going to be running?
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Old 07-08-2013, 07:19 PM
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no headers. not for a long time anyway. wife wont have it! lol. Im just swapping the cats because i cut my stock ones off and just threw in some pipe but im not happy with the sound. What size diameter pipe should i buy? 2.5 or 2.25?
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Old 07-08-2013, 07:22 PM
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summit's got some magnaflows for 70 bucks a pop im thinking im gonna go with. Im trying to get a setup to sound like this one.
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Old 07-09-2013, 04:43 PM
Nemmisis1 Nemmisis1 is offline
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I don't think it's your cats.... The long stainless straight pipe between your y cat pipe and the exhaust .. I believe there is another pipe inside that one. I changed my exhaust with dod18m magnaflow 18" .. And after I put it on it sounds like the heat shied rattled because of the rumbling.... When it first starts and then goes away... So I started it this morning with me under the truck..well the heat shield was solid and when I hit that pipe sounded like another on inside. I will be taking it up soon to see... But it's too damn hot now. We might have 2 1/2 on the outside but maybe there is a 21/4 inside. With the heat maybe it expands and stops rattling... Check yours out let us now
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