Exhaust estimate in Colorado

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All that CARB situation is some shady sht. As far as I know toyota has the same part numbers for cats, no matter the state or country or continent. But correct me if I'm wrong. Making different cats for Wyoming, different ones for Colorado and different ones for California would make no sense. Not to mention the fact that the clean air standards and safety standards in the US are prettly low, compared to Europe, for example, but we are being sold the story that we can't have the 70 series or the hilux and many other models due to them not meeting US safety regulations. Of course they don't meet the regulations because they exceed them. This is some BS to make sure the F150 sells OK.

I had a chevy express with rattling cats and they started rattling really bad when I was on a trip from California to Washington. The decision was to change them mid-trip before the honeycomb breaks and clogs the muffler or pipe. I called a shop from CA and they quoted me $1500 for the two cats alone because they were, ehm, 'certified'. In Washington it was $500 including labor. It was 6 years ago and the chevy passed CA smog with flying colors ever since.
 
If you do buy the OEM Y-pipe that comes with the catalytic converter (17401-66090), please sell me your old Y pipe. Scott at AA said mine is aftermarket junk but my cat is fine so I've been looking for a Y pipe ever since.

Also I would like to echo what @cruisermatt said.... if you are able to get in touch with the Cruisers and Company guys, they may have a bunch of exhaust systems since they have to rip them out in order to accommodate their turbos (the Y pipe is replaced by a J-pipe and everything from there on is also different, I think).
 
I just had Boulder Muffler do a custom cat-back exhaust for me yesterday. They knew what they were doing and did good work, and while I wouldn't say it was cheap, it was much more reasonable than the labor cost at most of the local Land Cruiser specialty shops. And getting in and out in a day instead of having to wait 2 months for an appointment was definitely nice.
 
CARB-certified cats are better and generally have longer warranties because of that compared to non-CARB certified cats: 5 years/50,000 miles.

I would pay good money to have someone with skill tig weld me a custom stainless exhaust, with carb-certified cats. I haven't found any carb-certified cats that will fit and specced for the engine size...6.0L
 
Sounds like you gotta do something, but the cats are high. When I had to buy a cat for my wife's 98 tacoma, I bought a 49 state cat and shipped to a friend out of state. the price difference between a 49 & 50 state is almost half of a carb cat. yeah I know, but its retarded when you look at the difference in the numbers.
 
I'm in Colorado. I'm happy there are strict emissions here. Sorry it costs more but it's part of maintenance for a truck that historically barely needs any compared to most vehicles. Denver still sits in a brown cloud but it's better than it was when I was growing up. Remember a few years ago when folks were stealing catalytic converters? Seems like a thing of the past but I still put tracking badges on my cats to help with that effort. Thanks OP for doing your part to keep our air cleaner. Try to tune out the folks that thing that rules are specifically there to make their miserable lives more complicated. They just complain about everything anyway. Just be happy you don't have a diesel truck. It costs me a lot more to keep that vehicle maintained but the torque is amazing!
 
Colorado keeps tightening the limits so these trucks have to stay under lower limits now than when they were new.
 
subzali said:
Colorado keeps tightening the limits so these trucks have to stay under lower limits now than when they were new.
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New emissions standards are not retroactive. It may seem that way sometimes, but they're not.
 
You wrote that the trucks have to stay under lower limits than when they were new. That would make the new rules retroactive (to older cars), which they are not. In other words, they can't keep moving the goalpost on emissions. They can only change emissions rules for new cars.
 
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sadovnik said:
You wrote that the trucks have to stay under lower limits than when they were new. That would make the new rules retroactive (to older cars), which they are not. In other words, they can't keep moving the goalpost on emissions. They can only change emissions rules for new cars.
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In 2006 the NOx limit was 9.0
By 2008 the limit was lowered to 3.5
In 2022 it was lowered again to 2.5

Same 96 80 series, different requirements to meet as time goes along.

So yes, Colorado keeps moving the goalposts on emissions.
 
subzali said:
In 2006 the NOx limit was 9.0
By 2008 the limit was lowered to 3.5
In 2022 it was lowered again to 2.5

Same 96 80 series, different requirements to meet as time goes along.

So yes, Colorado keeps moving the goalposts on emissions.
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I stand corrected. They are moving the goalposts, which is absolute BS. My ‘75 is exempt but I fear my 80 series will have a hard time passing next time around. Ughhh.
 
I also think lowering the standards over time is BS.

I mean, at this point, I would run a few gallons of E85 on an nearly empty tank and then do the emission test again. OP was really close.

Warning: FZJ80 fuel system was never designed for E85... When I did my LS Swap, I made sure all rubber lines were E85 compatible...
 
shimmy said:
My 80, with 300k miles, is running quite smoothly other than not passing emissions here in the front range of Colorado. It also clearly has exhaust leaks and smells pretty foul while running. It smells as though it’s running rich. Various threads lead me to suspect O2 sensor and cats. I’ve gone through and done all the main things, ignition system, EGR, various vacuum hoses etc. Still fails emissions.

I took it to an exhaust shop here in the front range known for quality work, and got an estimate, but before I commit I would love someone to provide me with a gut check. The guy says the cats are dead, and the sensors are “responding slow.” To me, this seems reasonable for the work, but the individual parts seem high in the price range. I’m curious what others have think/experiences.

Goals for the truck: gradually restoring it. Original engine. No rust, straight body. Seems to me worth it to keep it running nice but I don’t want to overpay for stuff either. Doing all of the work myself but exhaust is out of my skill set.

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Try BDM performance exhaust off of 5th and Federal. Google Maps - https://maps.app.goo.gl/n11kLqfmirwx6XTK8
They are a legitimate exhaust shop. Just my opinion but I bet if you swapped both O2 sensors you would pass emissions.
 
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