Exhaust Manifold (2000 4.0)

SouthernTJ2000

TJ Enthusiast
Joined
Mar 19, 2024
Messages
103
Location
Tomball, TX
So I'm new to the Jeep family and recently picked up a '00 4.0. I'm in the process of doing my usual inspection/changing/fixing/upgrading of everything on, in and under it. I've noticed the exhaust has some decent surface rust and have started to correct this. My next step is to replace the stock exhaust manifold(s), however I'd like to keep it as "affordable" as possible. Although its covered in surface rust, it does not have any leaks....yet. As opposed to pulling them off, knocking the surface rust off and doing a craigslist rebuild, I'd assume to just replace them. I see their are some name brand options ($$$$$) and I've also found some stock replacements ($$$$). However I was curious if anyone has run this ebay special and what your thoughts are. I'm not looking for performance, I'm looking for fitment. I don't want to fab/massage the manifold to get it to fit. I'm to old and ornery these days to do all that BS...lol. If you have any other suggestions in or under that $250 range, by all means please let me know. I don't mind spending more coin, however I'm hoping I can avoid spending the $500+ for the name brand and stock replacements I've found online. Thanks.

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Don't fix anything until it needs it. A wire wheel attachment on a drill will remove a lot of surface rust underneath. I ran an Ebay cheapo manifold on my 98' and it was as good as the more expensive options back then.
 
I'm curious about this too. I have a suspicion my manifold is cracked somewhere that I can't see it. Haven't gone any further with trying to find the crack, but if I find out it IS cracked, I want something decent to replace it with.
 
I'm curious about this too. I have a suspicion my manifold is cracked somewhere that I can't see it. Haven't gone any further with trying to find the crack, but if I find out it IS cracked, I want something decent to replace it with.

If I end up purchasing this, I'll keep you posted. Funny, as I just received a $7.75 off coupon on this item...lol. They're always watching.
 
The 2000 has the dual manufolds, the one in the picture looks like a one piece. There is a good reason Chrysler switched, the one piece are prone to cracking. Those factory manifolds are pretty thick, some surface rust (I don’t think I have ever seen one not covered in rust) isn’t going to affect performance
 
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