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Old Yesterday, 21:39
moparcyco moparcyco is offline
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pre 00 4.0 in 2000 xj exhaust question

Was looking at picking up a 2000 has engine trouble. I have a clean great running 4.0 from a 94. So I googled what is necessary to swap them. The cps and coil pack brackets are no big deal. I really was hoping someone here had done this as to how to make the exhaust work. I will use the intake from the 00 so what exhaust manifold and or header works here? on my searches it looks like maybe header but $400 plus makes it not worthwhile. If I understand correctly the ports are bigger on the pre 00 heads and maybe don't line up properly? been reading for hours maybe just did not find the right thread. If you have made this work any input would be very helpful.
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Old Yesterday, 23:28
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lazyxj lazyxj is offline
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Re: pre 00 4.0 in 2000 xj exhaust question

I can only confirm the Banks header, (for 2000-2001 XJs) works on an earlier head.
You can also try this, a lot cheaper way of resolving the differences in exhaust port locations . I have no experience using it.
https://jeepexhaustadapter.com
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Old Today, 04:54
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Tim_MN Tim_MN is offline
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Re: pre 00 4.0 in 2000 xj exhaust question

Use this from member wilsmick >> https://jeepexhaustadapter.com/

Read about the kit here >> https://www.naxja.org/forum/showthread.php?t=919384
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Old Today, 07:08
RCP Phx RCP Phx is online now
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Re: pre 00 4.0 in 2000 xj exhaust question

First question would be, "is it Fed or Cali emissions". That will determine the header you need.
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