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Old 02-11-2011, 11:55 PM
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Question Manifold...OE....Banks...."other"

I'm replacing my manifold and need some advice. Is the Banks manifold worth it? Are there REAL advantages to Banks vs. OE? Quadratec has the OE manifold for $155 and the Banks for $473. Is Banks really worth the extra $320? OR is there another manifold I should consider? Thanks for any feedback you can offer.

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Old 02-12-2011, 12:12 AM   #2
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I can't say from personal experience, but I always hear good things about Borla. I have a stock 03 TJ and have heard that manifolds have issues on the 4.0. Are you replacing because of a leak?

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Old 02-12-2011, 12:12 AM   #3
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From what I have read on here there are no advantages to going to an aftermarket header. The OE works fine, but look for the modified OE manifold with the expansion joints that help to prevent the common crack.
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Old 02-12-2011, 12:59 AM   #4
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I had a couple cracks in my old one and saw how much new ones cost so instead of buying a new one I got a junkyard one and welded the cracks and it only cost me 14 bucks lol
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Old 02-12-2011, 01:32 AM
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I can't say from personal experience, but I always hear good things about Borla. I have a stock 03 TJ and have heard that manifolds have issues on the 4.0. Are you replacing because of a leak?

I'm about 75% sure I have the "usual" crack in the manifold. It is making a "tapping" sound from time to time and sporadic idle. And I have already cleaned the throttle body, replaced the plugs with NGK's and replaced all 4 oxygen sensors. So I am thinking the only thing left is the "usual" crack in the manifold.
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Old 02-12-2011, 01:34 AM
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I had a couple cracks in my old one and saw how much new ones cost so instead of buying a new one I got a junkyard one and welded the cracks and it only cost me 14 bucks lol

WOW...If only I could weld!
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Old 02-12-2011, 01:37 AM   #7
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ive got the raw steel rugged ridge that is just a cheaper clone of the banks header, also got the monster-catback and love it. I think you can find some decent replacements on e-bay or just reweld yours, also if you had a cracked manifold it should be a constant not sporatic. If the crack is there you should always hear it unless the gap fills when the engine warms up.
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Old 02-12-2011, 01:39 AM
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From what I have read on here there are no advantages to going to an aftermarket header. The OE works fine, but look for the modified OE manifold with the expansion joints that help to prevent the common crack.
Does the product description specifically mention the expansion joints? Because I haven't noticed that yet. I have found a couple other brands on other websites that are around the $150 range and are made of the 409 steel....which may be an option for me if I can't find the OE with expansion joints.
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Old 02-12-2011, 01:45 AM   #9
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I think from what I have heard from others on here they are on e-bay. Try a google search. I have yet to look for them but I bet mine will need to be replaced soon and I plan to go to the OE with the expansion joints.
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Old 02-12-2011, 01:45 AM
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ive got the raw steel rugged ridge that is just a cheaper clone of the banks header, also got the monster-catback and love it. I think you can find some decent replacements on e-bay or just reweld yours, also if you had a cracked manifold it should be a constant not sporatic. If the crack is there you should always hear it unless the gap fills when the engine warms up.
That's good to know. I saw that rugged ridge one on a couple different sites. They seem to be pretty reasonable compared to some of the other brands.

The "ticking" and sporadic idle is getting more and more frequent. He is my DD.
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Old 02-12-2011, 07:00 AM   #11
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I bought a stainless steel header off eBay for $90
30k miles later it's still holding up
Look for jeep Tj header
Some places have it higher or cheaper,think it's listed as a 2000 Cherokee exhaust manifold
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Old 02-12-2011, 08:26 AM   #12
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I'm about 75% sure I have the "usual" crack in the manifold. It is making a "tapping" sound from time to time and sporadic idle. And I have already cleaned the throttle body, replaced the plugs with NGK's and replaced all 4 oxygen sensors. So I am thinking the only thing left is the "usual" crack in the manifold.


Good luck, if you can, please update what you end up doing and if you notice performance / mpg gains if you go aftermarket. I may be going through the same thing eventually.
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Old 02-12-2011, 09:38 AM   #13
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http://shop.mobileweb.ebay.com/searc...header&x=0&y=0
Looks like the price is up too $140 now but I have no issues with the stainless header,it's been thru loads of water while hot.still shiney
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Old 02-12-2011, 09:44 AM   #14
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JBA makes a nice header.
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Old 02-12-2011, 01:43 PM
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Quote:
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I bought a stainless steel header off eBay for $90
30k miles later it's still holding up
Look for jeep Tj header
Some places have it higher or cheaper,think it's listed as a 2000 Cherokee exhaust manifold
It appears that most of the headers I am looking at are set up for a single cat. Unfortunately, my 03 TJ has dual cats. Do you know if I will still meet emission requirements if I switch the manifold to a single cat?
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Old 02-12-2011, 01:46 PM
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Originally Posted by mum954 View Post
I'm about 75% sure I have the "usual" crack in the manifold. It is making a "tapping" sound from time to time and sporadic idle. And I have already cleaned the throttle body, replaced the plugs with NGK's and replaced all 4 oxygen sensors. So I am thinking the only thing left is the "usual" crack in the manifold.


Good luck, if you can, please update what you end up doing and if you notice performance / mpg gains if you go aftermarket. I may be going through the same thing eventually.
Thanks. This seems like a very common issue with the 4.0....if not inevitable, so I will definitely keep updating on what I choose to go with and any performance changes.
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Old 02-12-2011, 02:38 PM   #17
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Aftermarket is not worth the money. From the factory you have a header versus a manifold style, so you already have increased performance. I installed that OE one off Quadratec and am very pleased with it. You REALLY want those expansion joints it has. I didn't look at too many aftermarket ones, but I did not see those on there. The only aftermarket that would hold up would be a 2 piece design with 3 runners on each, not the 1 piece 6 runner units.
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Old 02-12-2011, 02:51 PM   #18
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There is no reason to replace the OE exhaust header system if you are doing it for performance reasons. It is already a true header system, it is not the more common cast exhaust manifold that by being replaced by a header can improve performance.

Banks and Borla headers have both earned well-designed reputations for cracking when installed onto a Wrangler TJ engine. Why? Because they use the same early crack-prone header design used in the Wrangler TJ from '97 to '99 before the factory fixed the issue with flexible steel bellows at the two points they tended to crack at. Who cares if Borla and Banks headers come with a "lifetime" warranty since it's a PITA to have to replace them. Better to install a better quality header, if you need one, that won't crack in the first place. Both Banks and Borla's designs are like the early '97 to '99 OE header system that was very prone to cracking. Newer factory headers replaced the part of the tubing that tended to crack with flexible steel bellows that are like an accordian joint.

If your existing header is cracked, you can find replacement headers on eBay with the recommended flexible steel bellows to make them crack resistant. If it's not cracked, I'd leave it as is.

Here's a photo of the OE style header that has the above mentioned flexible steel bellows joints. There are many sold on eBay that are very similar. Neither Banks nor Borla have bothered to upgrade their headers with that flexible joint although the Jeep factory upgraded theirs back in '99.
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Old 02-12-2011, 02:57 PM   #19
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i didnt notice this thread before started a new on the same subject oops.but in reguard to the post about getten the manifold with expansion joints in it,thats what i replaced my oe with and it lasted almost a year,there has 2 be something better be cause this manifold breaks to.
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Old 02-12-2011, 03:02 PM   #20
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There are cheap headers that will crack with or without the flexible steel joints, you just have to get a better quality header. My '97 TJ's OE crack-prone original design headers cracked 3X... the original and then two replacments... under warranty until Jeep came up with the better design with the flexible steel bellows in '99. The dealer finally installed the newer design header and it remained crack-free until the day I last saw it in March when that Jeep was stolen. The new design header had over 150K miles problem-free miles by the time it was stolen.
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Old 02-12-2011, 03:19 PM   #21
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The only problem with switching is that you have 4 O2 sensors. Two on each exhaust bank. So no, you won't pass emissions.

Edit: this answer is directed to Sky Soilder's question.
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Old 02-12-2011, 03:30 PM
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Jerry....Thank you very much for the GREAT info. You just saved me over $300 , because I had convinced myself that the Banks was the way to go. I read your posting right before I "added to cart".

With that said....will the headers you have shown in the pic work with my set up? The reason I ask is that my 03 TJ has 2 cats then joins into a single exhaust downstream and it appears from the pic that those headers are set up for only 1 cat.
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Old 02-12-2011, 03:37 PM
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The only problem with switching is that you have 4 O2 sensors. Two on each exhaust bank. So no, you won't pass emissions.

Edit: this answer is directed to Sky Soilder's question.
Well, that stinks. It appears that I'm back to square 1, because I can't find any of the 2 cat systems with the flexible bellows.
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Old 02-12-2011, 03:41 PM
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The only aftermarket that would hold up would be a 2 piece design with 3 runners on each, not the 1 piece 6 runner units.
So, is the 2 piece design still as good as the 1 piece design even though it doesn't have the flexible bellows?
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Old 02-12-2011, 03:50 PM   #25
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i welded my tubes together ,seems to work fine . OE is the way to go
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Old 02-12-2011, 08:11 PM   #26
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Yep I screwed up, I forgot your headers are a two-piece design so the header in the pic I posted won't work. And to think I'm running that same two piece design on my current TJ, you'd think I woulda thought of that. Nope.
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Old 02-12-2011, 09:29 PM   #27
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JBA makes a nice header.
Quoting myself to insert a picture:




Knock on wood, so far so good with five years of daily driver use on it.
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Old 02-13-2011, 10:59 AM
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Well Jerry....it happens to the best of us.

Computeruser, those are some good looking headers. I found them on a couple sites for around $390. Seems a little expensive, but if they are that good it may be worth it.

Also I found some Flow Daddy Headers on sale for $250 on rustysoffroad.com. Seems like a good deal since they are made out of the 409 stainless steel instead of the regular 304 steel. That is a MUCH better price than the OE. The OE's are $285 EACH

This is a pic of the flow daddy's.
[IMG]file:///C:/Users/Chip/AppData/Local/Temp/moz-screenshot-2.png[/IMG]
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Old 05-22-2011, 06:45 PM   #29
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Trying to install the rustys off-road flowdaddy pictured above right now. Cannot get to the two front bottom bolts because of the design of the header been trying for 4 days any ideas?
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Old 05-22-2011, 10:01 PM
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Unfortunately, I ended up not replacing the headers. My "ticking" was a "sticky" lifter. Sorry, I couldn't help. Good Luck

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