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Old Yesterday, 21:39
moparcyco moparcyco is offline
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Join Date: Sep 2013
Location: Preston Idaho
Posts: 179
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
NAXJA Member #1310
Join Date: Mar 2004
Location: Los Angeles
Posts: 2,254
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.
Both XJs are still Real XJs
01 Sport, 4.6L Russ Pottenger 4.6, AW4, 4" lift, 33 X 10.50 KM2, 4.56-8.25 TruTrac, D-30-E-Locker with alloy shafts, Hidden M8000 winch, Vanco front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate.
1997 Country, Mostly stock, 2" lift, Engine mods, NP242, Towing baseplate
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Old Today, 04:54
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Tim_MN Tim_MN is offline
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Join Date: Mar 2003
Location: Minneapolis, MN
Posts: 6,366
Re: pre 00 4.0 in 2000 xj exhaust question

Use this from member wilsmick >>

Read about the kit here >>

Originally Posted by bimmerjeeper

I'm starting to realize people on the Jeep forums are highly expert mechanics .....

Last edited by Tim_MN; Today at 05:06.
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Old Today, 07:08
RCP Phx RCP Phx is online now
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Join Date: Mar 2003
Location: Phoenix,Az
Posts: 11,862
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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