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My shop I went to welded my dual exahust on, this guy at AM said that I need to have flex joints in my exhaust, thats why my manifold cracked, and my new headers will over time too? I still dont understand this, does anyone know what to do?
 

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you dont need flex joints on your exhaust. all you need is headers, midpipe and catback lol
 

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If your manifold is cracked it's most likely due to the condensation from your a/c dripping on the manifold. I'm guessing your passenger side manifold was cracked on the flange right before it mounts to the y-pipe.
 

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i've heard of this happening before...and the solution was to have a shop weld a piece of metal where the condensation drips on the manifold to act like a small roof for it to bypass safely...
 

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Yea 6er's right, my buddy had this same problem, the shop just put a covering where the a/c was dripping...problemo solved!!
 

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If this HASN'T happened to you you're lucky. As said, a plate can be welded to block the drip, or a hose can be inserted to divert the water.
 
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