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Discussion Starter · #1 · (Edited)
So, I was looking at purchasing a TRD exhaust because I prefer the side exit versus rear exit of the tip. The previous seller installed a JBA exhaust but did not mention anything else regarding modifications. It appears I do not have my 2 cats closest to the exhaust and instead a Y Pipe. Im guessing its a URD?

What surprises me is I am in the Portland, Oregon area and emissions here is generally very strict. I passed with flying colors last Wednesday so I was surprised when I looked underneath today that I didnt have those 2 cats. Will this be a problem for the FJ moving forward? Should I install a pair catalytic converters down there or leave it as is?

Ive never owned a car where any of the cats were removed and am somewhat upset I didnt inspect this but if its fine then its all good.

Thanks in advance.
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If it crosses under the transmission pan then it is probably a URD Y pipe. Thats the only one that I can think of that does that.

If it doesn't look like that, post up a pic and I'll be able to tell you which it is off-hand.

I personally don't know alot about emissions testing since I've never had to have a vehicle inspected. Yes its strange to me that it passed, apparently the first two cats are the most important. I have the last two cats deleted on my FJ as well and its hard to tell a difference from the exhuast smell alone since the other 2 cats are still installed.
 

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No sniffer for the FJ, they just plug into the ODB port to see if there's any codes from the front cats underperforming. I don't see any reason to bother putting them back in if they're gone, someone will just cut them back off for you anyway.. 🤣
 

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Discussion Starter · #5 ·
No sniffer for the FJ, they just plug into the ODB port to see if there's any codes from the front cats underperforming. I don't see any reason to bother putting them back in if they're gone, someone will just cut them back off for you anyway.. 🤣
True! I think for me its just the extra gas smell that gets me. I mean its not tooo bad but with a newborn coming and a toddler currently, I dont want my wife to give me any excuse to get rid of this FJ ive been longing to own 😂😂😂.
 

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Discussion Starter · #6 ·
If it crosses under the transmission pan then it is probably a URD Y pipe. Thats the only one that I can think of that does that.

If it doesn't look like that, post up a pic and I'll be able to tell you which it is off-hand.

I personally don't know alot about emissions testing since I've never had to have a vehicle inspected. Yes its strange to me that it passed, apparently the first two cats are the most important. I have the last two cats deleted on my FJ as well and its hard to tell a difference from the exhuast smell alone since the other 2 cats are still installed.
For some reason I cant post pics on this forum. It keeps saying something about the attached image not having an allowable extension.
 

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True! I think for me its just the extra gas smell that gets me. I mean its not tooo bad but with a newborn coming and a toddler currently, I dont want my wife to give me any excuse to get rid of this FJ ive been longing to own 😂😂😂.
unless she reads this forum, she will never know. Sometimes it makes sense to play dumb.

When I was a kid, there was leaded gasoline and we used to bathe in it cleaning parts and all. Im still kicking at 60.
 

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Discussion Starter · #13 ·
Wow, thanks everyone. You are all awesome. So with the URD Y pipe, im guessing its a quality piece? I mean, I am just glad theres no check engine light and everything runs smooth. Im also wondering now if my heads were replaced too. You guys think I shouldnt have issues swapping out the JBA exhaust for a TRD one?
 

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Headers? Hard to say without seeing them. The URD is a good piece although she's lookin a little crusty. Those parts don't change the configuration of the exhaust, any cat back should bolt right up.
 

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Discussion Starter · #15 ·
Headers? Hard to say without seeing them. The URD is a good piece although she's lookin a little crusty. Those parts don't change the configuration of the exhaust, any cat back should bolt right up.
Ill try to get a pic of the headers. Ive listened a lot of clips of FJs with a cat delete and mine doesnt sound anywhere as loud. Im not sure why the Y pipe and exhaust look so orange. Is there anything I can do to help it? Any spray or anything?
 

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The pipe is supposed to be stainless. I can't tell if that's something someone sprayed it or what the deal is. It doesn't look like it's rotting, just oddly uniformly surface rusted or otherwise.
 

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I think certain years do but for mine they only did the obd2 hookup test.
even if they do a visual inspection, FJ's are enough of a one/off for emissions inspection places they probably dont even know what the FJ came with. You can point out, here are the cats on the exhaust manifolds and hey it passes emissions testing.

For my 2020 Auto FJ, I had actual emissions testing done this on the treadmill (versus all prior were just hooking up to OBDII hookup test. Must have had to talk to 4 or 5 people within the emissions testing place to figure out whether the FJ had to go on the AWD treadmill. They went back and forth and finally decided even though the auto was in 2H, it had to go on 4WD treadmill.

My point is they dont have a clue here in the front range of Colorado about FJs and they have been doing testing for decades. They'll probably look at your Y pipe with the mud/patina on it and assume it is OEM and assuming you cam pass the emissions testing guidelines once they are doing an actual test on your model, my guess is you will be fine.
 
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