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im reading about all these cracked manifolds tho. since i am new to these jeep jeeps, im curious about why and how they are cracking ect.

if i can replace the thing now with some thing that will last and all that jaz, i will.

enlighten me

steve
 

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Your Manifold Will Be Fine, D.c. Solved The Cracking Problem Back Around 2000 With The Two Piece Manifold. If You Are Looking For A Header I Here Stay Away From Borla And Banks Because They Crack Easily.
 

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I would leave your stock manifold alone, and if it cracks then replace it.
I have a 99, which cracked and I replaced it with a banks and have had nothing but problems with it. however, I did notice a performance gain when I installed it. which is why I'm trying to find a reputable replacement. I had a 89 jeep that also had a cracked manifold. so I'm getting kind of tired of this particular problem.
smitty
 

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I really enjoy reading all these posts about the problems with after market headers. You know JEEP has been doing a fantastic job with headers on the 4.0L for years! How many 4.0's are out there times how ever many miles they have all been put through. Pretty dam good track record for me!

Why screw around with what works? If it ain't broke why fix it?
 

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in this months issue of jp mag they were talking about this, and even show a pic where the typically crack. as far as borla cracking easy i doubt it. but there are both a two peice or one peice header out there from borla maybe what you have heard about breaking is a one peice???? not sure, but you would be a special person if you replaced your new two peice design to an aftermarket one peice. so if you get a two peice aftermarket you should be good, you may not have had to worry about cracking with the new one , but you would bolt on a few hp atleast
 

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I am running a Pacesetter header on my 4.2 and have been for almost 4 years. I have not had any problems. This problem may be 4.0 specific, I am not sure. I have also looked at headers from clifford performance, but don't know how well they hold up either. These two may at least be worth looking into.
 

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RedWrangX said:
in this months issue of jp mag they were talking about this, and even show a pic where the typically crack. as far as borla cracking easy i doubt it. but there are both a two peice or one peice header out there from borla maybe what you have heard about breaking is a one peice???? not sure, but you would be a special person if you replaced your new two peice design to an aftermarket one peice. so if you get a two peice aftermarket you should be good, you may not have had to worry about cracking with the new one , but you would bolt on a few hp atleast
I can't believe JP has been quoted twice in one day. :eek:

RedWrangX, do yourself a favor. Make sure you enter the Halloween costume contest. You'll enjoy the prize if you are one of our winners! :D
 

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i am not sure if you are being serious, like you are happy so many peeps are actually reading jp. or if you are being insulting like i am an idiot and i am trying to sound like i know something but really i am just qouting a magazine, lol. And what are the rules of this estranged contest? am i dressing up myself or my jeep? lol
 

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RedWrangX said:
i am not sure if you are being serious, like you are happy so many peeps are actually reading jp. or if you are being insulting like i am an idiot and i am trying to sound like i know something but really i am just qouting a magazine, lol. And what are the rules of this estranged contest? am i dressing up myself or my jeep? lol
Actually, I'm just talking bad about the JP mag. I think that magazine insults the intelligence of Jeepers and they do not listen to the Jeep community as to what they would like to have in a Jeep magazine. Those guys there are only going to do it their way regardless of the readers. That's fine. They can do it, because it's their magazine to ruin. Now, there is an alternative, though.

Chack out the Halloween costime contest here! You get extra credit if you dress up your Jeep.
 
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