22RE cracked exhaust manifold

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It's not too bad, I plan to live with it for awhile. My question is: What would others recommend, a used stock replacement or a header of some kind? I would want to otherwise retain the stock exhaust.
 
I personally think headers are silly on a 22re but.... You really can't gain that much hp/torque so why bother?

I would just replace it and then you never have to worry about the rest of the exhaust matching up/having issues with header fitment.
 
I personally think headers are silly on a 22re but.... You really can't gain that much hp/torque so why bother?

Wow. Completely totally disagree. I easily detected a boost in power and response with my header, slightly larger cat, and 2-1/4" exhaust.

My header is an old LC Engineering (bought in 2000, before they were stainless), it's about to rust through. I would probably buy the same brand again. Exhaust is a custom stainless system.
 
I'm starting to believe better results can be had just by extruding the factory....



and if you did that you would have none of the problems commonly associated with headers....such as corrosion and flange problems....



I been flirting with this idea but haven't done it yet....
 
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Aftermarket header is a good idea, I've got a sexy exhaust system on my 22R (which was running with the new exhaust a total of 2 days before I took it apart -.- ), nice 4-1 header, 2.25'' piping to a performance cat (only decent one available at the time) to a flowmaster muffler to more 2.25'' piping is niiiiceee.

Hell, its worth it just for the reduction in weight, the stock header system is HEAVY
 
Wow. Completely totally disagree. I easily detected a boost in power and response with my header, slightly larger cat, and 2-1/4" exhaust.

My header is an old LC Engineering (bought in 2000, before they were stainless), it's about to rust through. I would probably buy the same brand again. Exhaust is a custom stainless system.

I also agree with KLF. I have the all stainless LC Engineering header and 2 1/4" exhaust set-up and would go that way again (although I don't plan on ever having to change the exhaust again as I only drive this 4Runner maybe 1000 miles per year).

In fact, a header and 2 1/4" exhaust is probably one of maybe 3 ways to actually get a noticable increase in power from a 22RE (the other two being a different cam and/or a new, higher HP version of the engine....I went with the new engine!).
 
Or if you want a replacement manifold its an Oriellys part number 674-272 in the DOR line. I dont remeber the price but it includes Full set of gaskets, new heat sheild, new pipe-manifold studs. The only thing it doesnt come with are the cat gaskets and the manifold-engine studs. And its really pretty when you first get it!

Edit- Also has a no questions asked life time warranty!
 
Well, two things. One, you guys missed the "retaining stock exhaust" comment from hog. All of your comments involve 2.25" exhaust systems with cat back x.y.z. Two, I mean how much power are you actually getting and is it that big of a deal/gain to justify the expense? I am sorry fellows, installing a header on a 22re with such low HP and torque figures is silly in my book. A header is designed for high rpm gain i.e. racing. Are you saying that you gain power/torque in the sub 4k rpm range???

But again, this is my own personal opinion and I am open for pursuasion ( :
 
Jukelemon;3468734Are you saying that you gain power/torque in the sub 4k rpm range??? ( :[/quote said:
I have a problem objectively answering this query as I put the header and exhaust on with a new DOA Racing engine. All the research that I did said, yes, more power at moderate rpm (3000+/-) with header and 2 1/4" exhaust.

I would say that with this engine and exhaust (and whatever cam Tim put in this engine), I start to loose power a bit over 4000 rpm FWIW.

Have you put a header on and not experienced any gain? Not picking at you but genuinely curious.
 
Well, two things. One, you guys missed the "retaining stock exhaust" comment from hog. All of your comments involve 2.25" exhaust systems with cat back x.y.z. But again, this is my own personal opinion and I am open for pursuasion..

That's right, so the question stands: Would a header be worthwhile with a stock exhaust? I don't want to go aftermarket because they invariably rust out much quicker than stock and there's no place around here that would do a custom stainless exhaust.
 
That's right, so the question stands: Would a header be worthwhile with a stock exhaust? I don't want to go aftermarket because they invariably rust out much quicker than stock and there's no place around here that would do a custom stainless exhaust.

No. I don't think a header would be worthwhile with a stock exhaust.

I still say, install a LC Engineering header and stainless CAT back exhaust. You don't need anyone "around here". It all bolts up and you can do it yourself. It's a 1 :banana: job and it won't rust out quicker than stock.

Of course, it's not cheap so if you want cheap then go to the local pick 'n pull until you find a stock manifold. (Of course you never said whether or not cost is an issue.)
 
I have a problem objectively answering this query as I put the header and exhaust on with a new DOA Racing engine. All the research that I did said, yes, more power at moderate rpm (3000+/-) with header and 2 1/4" exhaust.

I would say that with this engine and exhaust (and whatever cam Tim put in this engine), I start to loose power a bit over 4000 rpm FWIW.

Have you put a header on and not experienced any gain? Not picking at you but genuinely curious.
My experience with headers and exhausts in general when to comes to performance has been with M3's and 911's-specifically 968's and 993's. Even with those engines, you can't just put on a header and exhaust and expect such high gains as to 1-justify the cost and 2-really feel it. You have to do so many more things. Likewise, the power is felt in the upper rpms. Granted, the engines are tuned that way stock BUT a header actually decreases back pressure which, depending on the vehicle, is not good at low rpms. The cat and/or muffler has to make up for it. On the track, it is only a header and the cars typically have a very hard time at idle/non race conditions. Perhaps the 22re is different. Regardless, I would not put a performance part on such a low figured engine i.e. hp and torque specs.

The cost really does not support the gain (seat of your pants) in my opinion. So, no I have not added a header. I would need 50hp to justify the addition of anything to a 22re.
 
ive got a cracked manifold myself. Its right at the bend at the bottom. I noticed the leak about 4 months ago and up until a few days ago i was driving the car normally, albeit while sounding like an oldtime puttering engine due to the leak. the vehicle is currently not drivable, the crack must have gotten bigger (havnt been able to check it visually) becuase the engine is behaving horribly. It feels like its misfiring when idle and when I accelerate it sputters forward with random bursts and drops of speed. It calms down a bit when you go near 3k but anything below that is simply embarrassing.

So you dont have too long to ride on the crack is what im basically saying. I was hoping mine would last until August for financial reasons but it doesnt look like it. Ill be taking it to my mechanic to make sure its the actual crack thats causing all this and not some coincidental occurance.

I was planning on going with the LC Engineering header as a replacement as I did have plans of redoing the entire exhaust system (cat and muffler) later this year. What I'm still not sure about is if the LCE header will bolt up to the rest of the stock exhaust piping. Their website doesnt list the diamiter of the headers final output but I keep running into information regarding how it fits without needing cutting or welding or bending.

Does the LC Engineering header bolt onto the rest of the factory exhaust or will one need to also redo the rest (2.25"?) of the piping?

I may just hit the junkyards for a spare oem exhaust and get it done cheap, but a junkyard replacement might crack
 
Or, as i said previously you could go to oreillys and give them this item number 674-272 and this line code DOR and have a lifetime warranty, and no worries!

actually thats something im gonna keep in mind. but ive never dealt with oreillys so its a clean slate for me and can go either way.

ultimately i do have plans to redo the exhaust, headers, flowing cat, and muffler. that is why i would lke to take the opportunity to get the LC header on now but im not yet ready to purchase the rest.
 
The LC header doesn't bolt directly to the factory exhaust, at least mine didn't, but it's kinda old. I had to fab up a piece to go from the end of the header to the front of the cat.

Your best bet to get that question answered is to call LC. They are very helpful on the phone.
 
I'll take a header over the cast manifold on a 22RE any day. Of course, I would do it right and have 2.25" pipe built behind it. This one modification really brought my engine alive. There is no going back.
 
The cost really does not support the gain (seat of your pants) in my opinion. So, no I have not added a header. I would need 50hp to justify the addition of anything to a 22re.

You realize that you are talking about an engine that, in perfect condition, only puts out a bit over 110HP? 50HP would be great but you need to do more than a header. If you can add 10 to 15HP to a 114HP engine, however, I think that's pretty significant.....but that's just my opinion.
 
Does the LC Engineering header bolt onto the rest of the factory exhaust or will one need to also redo the rest (2.25"?) of the piping?


LC Engineering sells several different flavors of 22RE headers, and a tube that runs from the collector to the cat flange is an option. I have this header kit on my '88. It was all bolt on, no mess, no fabrication required. I have the same header on my '83, with nothing but pipe after the collector flange. I don't think I got full benefit on either of these trucks until I went with larger exhaust downstream though. I wasn't looking for performance gains at low RPM's because adding gearing to these trucks is so easy. Just my $.02
 
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