2G STM no longer stocking Atmospheric O2 housing dump, Same with ExtremePSI etc. *QUESTION!*

[Classifiedcalli17]

Hey guys! Back with another question .. So i have now noticed that STM, along with EXTREMEPSI no longer stock there atmospheric O2 housing external dump. I am wondering if anyone has used, and what the quality is like on the eBay branded ones.. I know you get what you pay for, but i don't see any other options available at the moment.

DSM Talon Eclipse o2 housing NEW pipe 90-99 1g 2g 4g63 | eBay

Find many great new & used options and get the best deals for DSM Talon Eclipse o2 housing NEW pipe 90-99 1g 2g 4g63 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Sent link above for exact one i am talking about.. I hear some people say they crack easily, and others say they are decent. ALSO I am on stock tune, stock turbo, i have mild bolt on's, Greddy intercooler hard pipe kit, Intake, Full 3" Turboback exhaust, I am wondering If it is okay to run one of these on stock tune? The car drives great!, it's a lower mileage 97 talon tsi awd 5-speed. Truth be told.. there was an evo x with an external dump/gate that ripped by me today, and it brought me back to when i was into the turbo honda game, and ran external gates XD. I know i won't get any benefit of using it but what the hell right? The car is a summer only car, does not drive much, and basically a weekend warrior. Just looking for a little more fun/noise, and if i hate it, i'll just bolt the stocker back into place. Would really appreciate any input (On this topic probably covered a million times on here) haha.

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[92AWDHX40]

Well you get what you pay for. Morrison Fabrications can make you one or look in the classifieds, even on fb. Try other places besides them.

 

[habitatguy187]

I’ve had three eBay o2 housings (2 dumped and one recirc) and they all fit fine.

 

[Vegas Smith]

I had an eBay one on my car for a few years and was very happy with it. If you get one, use a straight-edge to make sure the flanges are flat.

 

[92AWDHX40]

Looks like you got some reviews.

 

[Canadian_CD9A]

I think most manufacturers/sellers are terrified of the EPA coming and slapping Clean Air Act fines on them, same reason you can’t buy decat pipes for most cars anymore. I had a generic eBay o2 housing (non-dump) that was warped and required planing to get it flat, I never actually did use it. They’re hit or miss.

 

[jesse12345]

Mine was for sure warped when I got it but was able to shave it some to fit flat. It hasn't cracked or anything yet but the metal is thin so it'll crack eventually.

 

[1990TSIAWDTALON]

The ChinaBay units are hit and miss on the flatness of their flange that bolts to the turbo. Other than that, I haven't had any issues with cheap units, I usually have them surfaced/plained so they seal.

 

[Spleen8urLSX]

I’ve had 3 fail, one at the weld to the flange, the other 2 the think shitty material itself cracked right through. Like others have mentioned they also tend to be warped right out of the box and require work to make them usable. Also the angle on them is entirely too tight to offer a vast improvement in flow and likely hurts more than helping. With that being said it also doesn’t make a lot of sense to spend several hundred dollars on a nicely fabricated one, especially for a car that’s basically stock. Your best bet would be to port the stock one or have it ported and call it a day, even the nicest fabricated ones aren’t going to give you a noticeable gain over a ported stock one if any gain at all, I had no issue making 420whp on a ported stock one myself. The nice fabricated ones are more so for those trying to go as far as possible on a larger frame bolt on turbo set up which realistically in the year 2023 isn’t a problem anyone has any more. As far as requiring tuning, your ecu doesn’t know it’s there and a tubular or ported o2 housing isn’t going to be a massive increase in airflow causing a need for fuel your ecu can’t compensate for, no tuning is necessary.

 

[99dsmer4g63]

I’ve ran 3 of them. The one I’m currently on was one like you pictured. I actually cut the screamer pipe at about 1.25” and welded a 35/38 2 bolt flange and then fabbed a dump tube down and under.

Current one has been great with zero issues minus the typical flatness of the flanges I had to fix. First one was absolute shit and you couldn’t even screw the o2 sensor into it.


-Daniel

 

[Classifiedcalli17]

You guys are awesome! thanks so much for the reviews/input. All things considered i'll probably buy the eBay one, Resurface it, and clean it up by the flanges, and maybe dremel out the holes lightly. I got in contact with an employee at STM, and he told me they have a few on the shelf collecting dust, So as a long term customer i asked if i could get a slight discount on it. He told me "$300 shipped" which i find insanely expensive.. They were offering them for a little over $200 when they were in stock. Oh well.. I'll give an eBay unit a try, and if it cracks, i'll just have it cleaned up, and re-welded stronger. Thanks again guys!

 

[Spleen8urLSX]

Keep in mind most of the time they fail it’s the junk thin material they used, not the welds. No rewelding is going to resolve it. This one failed during anti lag.

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[Classifiedcalli17]

urrent one has been great with zero issues minus the typical flatness of the flanges I had to fix. First one was absolute shit and you couldn’t even screw the o2 sensor into it.

Keep in mind most of the time they fail it’s the junk thin material they used, not the welds. No rewelding is going to resolve it. This one failed during anti lag.

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Damn... Well.. Guess i need to give this a little more thought! haha. Maybe it's best to keep the stocker for now, and if future mods happen just port it out. Truth be told like i said i don't drive the car much, and who doesn't love the sound of an o2 dump, or external wastegate? XD Was looking to have a little bit of fun with it. Thanks so much for the pics/input! helps a ton.

 

[chrysler kid]

Damn... Well.. Guess i need to give this a little more thought! haha. Maybe it's best to keep the stocker for now, and if future mods happen just port it out. Truth be told like i said i don't drive the car much, and who doesn't love the sound of an o2 dump, or external wastegate? XD Was looking to have a little bit of fun with it. Thanks so much for the pics/input! helps a ton.

The ebay part will be fine for a street car.

If you are making any power and putting some serious temperature and heat through them, they will crack.

Your t25 or td05 framed turbo should be fine for a few years before the ebay dump would crack

 

[Spleen8urLSX]

The ebay part will be fine for a street car.

If you are making any power and putting some serious temperature and heat through them, they will crack.

Your t25 or td05 framed turbo should be fine for a few years before the ebay dump would crack

Pictured above was on an evo 3 16g.

 

[92AWDHX40]

I would say get it and if it fails then you know. That's the only to find out

 

[Spleen8urLSX]

For some they hold up, but it’s a toss up and risk. To me it makes zero sense to bolt on a part that can fail so catastrophically and usually needs work right out of the box to make it work correctly while making zero gain in performance over what’s there now. We also need to keep in mind this car has a stock t25 on it, the outlet of the turbine housing is going to be much smaller than the opening of these ching chong special o2 housings creating a good sized step, at that point I don’t see it hurting anything but also zero performance gain what so ever. Don’t get me wrong, I’m all for budget pieces when applicable, I’ll pull strings and make these parts work when there’s a point or benefit, but I’ll never tell someone to bolt one of these to their car when there’s no improvement to be had. Shit, I wouldn’t tell anyone to run out and buy a nice one even when there’s MAYBE a 5-10 horsepower gain (if anything at all) over a ported stock one, massive waste of money for no benefit other than to be able to say “look at what I have”. At least the high dollar ones won’t blow apart so easily, but when it comes to the Chinese junk it’s buyer beware and comes down to if the pros outweigh the cons for you. I will say they work out for cutting the dump tube off and adding a wastegate provision on a budget, but about all they’re good for.

 

[chrysler kid]

Pictured above was on an evo 3 16g.

Haha, well I would say launch control pops and bangs caused excessive wear on an inferior quality material, and under normal operation failure would probably not be as quick as what you saw. But its ebay and made from a company with minimal quality control. Although that seems to be the case with any aftermarket part these days because the aftermarket has very little support for these platforms anymore

 

[Spleen8urLSX]

Haha, well I would say launch control pops and bangs caused excessive wear on an inferior quality material, and under normal operation failure would probably not be as quick as what you saw. But its ebay and made from a company with minimal quality control. Although that seems to be the case with any aftermarket part these days because the aftermarket has very little support for these platforms anymore

True, but this was by no means heavily used and I wasn’t holding it on the 2 step for something to do either so it only seen that when I was launching it. My point is if it serves zero purpose as these do what is the good in using one, I can say I’ve never had a ported stock one blow apart on the 2 step. However, I will say I about crapped my pants when I was about to let the clutch out and my exhaust suddenly changed tone and the wideband lost signal haha. What it boils down to is the material they used is entirely too paper thin for the application, further down the exhaust sure, but right off the turbine housing where it see’s the most heat is harsh on this stuff.

 

[TerminalTalon]

The fitment and tension on the pipes matters also. I had to cut and weld mine to fit correctly.