How to Pass Emissions Without a Catalytic Converter!

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[gabrielcornejo]

Nice advice.
Here in Illinois from 1996 are required to pass emissions tests but they only check on OBD scanner.
So this device might help faulty catalytic pass emissions.

[Bassmasters]

I actually did this to my 05 f150 was throwing p0420 catylist below threshold put this j spacer in I used the one with biggest hole and after a week took it down and passed smog in California lol not easy to do but it worked flawless definitely work 35$ instead of replacing a cat

[danielsmith]

Ive got a defouler on all 4 of my vehicles and never had a drivability or emissions testing or CEL problem and I've had the very 1st one on for bout 8 yrs

[uscar]

My question is, how does the defouler work ? Does it just let less exhaust gasses to the O2 sensor, making it think that the cat is doing its job ?

[withapulse]

Just used this same device but different brand also with the smallest hole and it worked perfectly on a late 90s 6 litre V12 de-cat. .

[gweedomurray]

Here, in a 9 county area on the Colorado front range, they do dyno testing so no matter what tricks you employ, what comes out the pipe is what passes or fails.

[onehappydawg]

After looking through all these comments I can tell that a lot of people do not understand that laws and regulations change from county to county and from state to state.
This is definitely the case when it comes to almost anything to do with emissions.

You may live in a county with the most strict emissions regulations in the whole country and right next door in the next county they couldn’t care less.
There are lots of places across the country that do not even do emissions testing.

[heinargo]

Check engine or no check engine, but what about carbon monoxide and hydrocarbon readings? I am not sure that even Saab B20x and B23x engines could pass emissions test (in Estonia at least) and they are very clean running engines.

[AikidoTubeSock]

Will/won't the defouler be detected during the emissions inspection? Even though the catalyst monitor will show as completed via OBDII scanning, don't they also do a visual inspection under the car to look at things like you O2 sensors?

[mrapter]

Is this like, a permanent solution? Just leave the defoulers + 02 sensors in?

[morganmitchell]

I think it be pretty even seeing as both our mods list are close to the same.. keep the videos and Saab life coming.. best wishes from your friend about Saab bro NC..

[brandonstolberg]

I think a lot of emissions laws are crap. In the early '90's while living in California, I had a friend who worked at an emissions shop. Just for kicks we ran a bunch of tests one night, with emissions equipment, and without. This shop had a dyno and did load test emissions. We tested a 1990 Ford F250 with the 460 cu. in. big block, a 1988 Toyota Celica, and a 1993 Mitsubishi 3000 GT. As expected, the removal of all the emissions equipment produced a noticeable gain in horsepower and torque in all vehicles. Unexpectedly, they also produced cleaner tailpipe emissions under load with the emissions equipment removed. May not be the case all the time, but that is what we experienced.

[Ritarose-lvzq]

Working on test results goes to legal handling, having a friend in there won't be bad, said this till i got to Stray Administration, the YouTube channel gets to you close to the person and works you to the right part i mean thr best...❤❤❤

[Casperarizona]

Arizona isn't messin around out here. Its no longer available the defouler from this korona. I need a few for my Catless downpipes on my 335i. You know of another place to pick some up?

[ashtonmorgan]

Does this defouler screw into the up or down sensor sorry a little dumb

[AikidoTubeSock]

The product is gone from the website as linked. I looked on eBay and Amazon and found similar ones but they all lacked one or more details. Is there an alternate site?

[just.a.simplejoe]

@Auto Autopsy, forgive me for asking as I'm still learning but can you technically attach two defoulers together to help extend the range the air has to pass by before it hits the 02 sensor???
Looking to finally put headers on my Mazda and doing everything I can to ensure no codes are thrown.

[josefranciscoacevessanchez]

I'll try it. I have a mitsubishi lancer 06 that achieves the meets for a recall for DTC p0421 but in Mexico Mitsubishi says that they don't have even the scanner to fix the problem, they sucks.

[gazimohammedshameil]

I live in Arizona too I need something for W212 Mercedes E350 4-Matic. I already ordered another brand in the morning so hope it works. Will your brand work in mine too, just asking. However I do believe I need 2 for 2 downstream since it’s a V6.

[jamiereb]

3 years later, is this still working out for you? I'm in AZ as well and I'm looking for options with Mt bmw.