You should be able to put a flex in the small connector pipe from the d/s manifold to the rear cat. They make fairly short flex sections that should work for that. Certainly not looking forward to having to re-engineer the exhaust to have it stay quiet if this is what it's going to take.
Gen 4 Pace Setter Exhaust Manifolds / Headers
- Thread starter JPWendtinc
- Start date
You should be able to put a flex in the small connector pipe from the d/s manifold to the rear cat. They make fairly short flex sections that should work for that. Certainly not looking forward to having to re-engineer the exhaust to have it stay quiet if this is what it's going to take.
CruzadoBlanco
New member
They are a much higher quality build, and you get shorty headers to boot, so far from what I've seen noone with the Doug thorlys has had them crack like the magnaflows or in my case the pacesetter I installed a couple months ago. If I can get them to make me a set for the pre vvti v8 I'll be all over them
Toyota4ever
New member
I am wondering if a simple thing like a torque strap might help the flex issue.
Bonyfattony
New member
Replace them with Doug Thorley Headers performance headers. They are a lot cheaper and better than OEM.
Scott@Hightech
New member
Are they actually cracking or is the gasket leaking. I ask because I installed a set of crapsetters a few months ago. Not only did I have to machine the flanges ~4-5 mm to get them flat. I had to heat up the downpipe area cherry red and rebend it to get it to work with the factory y pipe.
If the flange isn't flat it will leak after a bit. If your prying on the exhaust to get it to line up then its going to put a ton of stress on it and likely crack one of the shitty welds.
They are junk any way you slice it. But there isn't a good solution for this problem so stick with what is cheap and install it as best as possible
If the flange isn't flat it will leak after a bit. If your prying on the exhaust to get it to line up then its going to put a ton of stress on it and likely crack one of the shitty welds.
They are junk any way you slice it. But there isn't a good solution for this problem so stick with what is cheap and install it as best as possible
ben550
New member
If you install the secondary induction air pump bypass mod can you just block off the air tube with the plates and run the pacesetters for 03-04s on a 05-09?
I am looking at options... Dont want to spend big money on aftermarket parts that will fail faster than OEM. Im leaning toward OEM parts at a dealer or DT's at a custom shop. One would have a warranty for at least 12 months... the other none.
I am looking at options... Dont want to spend big money on aftermarket parts that will fail faster than OEM. Im leaning toward OEM parts at a dealer or DT's at a custom shop. One would have a warranty for at least 12 months... the other none.
Just go DT and save yourself the headache.
The problem with 03-04 manifolds is they don't have the chanel of air ports over the exhaust ports. So if you used them you'd need a block off plate. There was a guy making them years ago, but he isn't active that I know of anymore.
Doug Thorley headers will be better quality, won't break, improve power and efficiency, and other than the welding part it's the same pita to install.
Sent from the drivers seat of my 05 4runner.
CruzadoBlanco
New member
you can, it has been done. however just spend the extra money on the doug thorleys. both the magnaflow and pacesetter manifolds are garbage. i pretty much wasted 200 bucks on my pacesetter that cracked in less than 3 months.
ben550
New member
That is my plan. I want to fix once and be done. I found a reputable custom exhaust shop and will be contacting them to get a quote for the job with DT headers. I plan on buying the DT headers and letting them do the job. One question though... is it worth buying new cats rather than having the old ones welded on? Worth replacing all the O2 senors with Denso replacements?
Some will say no, but I believe it's worth replacing the cats. You can get some nice high flow ones from magnaflow or flow master for a great price. I wouldn't worry about the O2 sensors unless they give you problems. Those suckers are a pretty penny!!
You won't find a better price than what [MENTION=9]Jason B[/MENTION] can give you. Give him a call/text @ 7173192100 or you can pm him here, or even go to his website. I'd call/text as you can deal directly with him for any questions.
Sent from the drivers seat of my 05 4runner.
Ya, it'll just crack again. It is a faulty design. There's several threads on it, this one doesn't really have much info.
Sent from the drivers seat of my 05 4runner.
So if I understand correctly: If you have a 05+ v8 and you live in California, there is absolutely nothing anyone can do or has done which can stop the manifold from cracking since you can't use anything except factory manifolds to pass smog?
Am I missing something?
So weld the cats onto the headers per instructions. I mean stock replacement is like twice the cost of the headers...
Can't help you there, not sure of cali rules. I'm not sure why they aren't smog approved as long as you keep the cats, just a better designed manifold really. Cali is crazy! Lol
Sent from the drivers seat of my 05 4runner.
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