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Universal catalytic converter

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Old Aug 22, 2021 | 05:50 PM
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Universal catalytic converter

It's time to cut the cat and cash it out before someone else generously does it for me. My priorities are as follows, most important first:

1. It won't clog and mess other systems up

2. Cheap

3. Easy to install without a welder

4. Part of a pretty sounding exhaust system
Whose put something in that fits that description? Thanks!
 
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Old Aug 22, 2021 | 06:06 PM
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You have a working, intact exhaust system and you want to replace the cat with a "universal"?

There is no good reason to do this.

Cheap "universal" cats have a history of not working very well as cats.

If you want more noise, go cat-back.

People that steal cats will be just as happy to steal the universal cat.
 
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Old Aug 22, 2021 | 07:05 PM
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I have my reasons. Mostly that I can sell my stock cat for 4 figures and buy a new one for under $500
 
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Old Aug 22, 2021 | 07:17 PM
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Originally Posted by FioreFire
I have my reasons. Mostly that I can sell my stock cat for 4 figures and buy a new one for under $500
And downgrade and otherwise good truck. If your cat is going bad and you have to replace it (e.g. living in California), I can understand this. Other than that...
 
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Old Aug 22, 2021 | 07:27 PM
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You may also be able to sell off your tires and alloy wheels and replace with steelies and pizza cutter tires for a small profit.
 
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Old Aug 22, 2021 | 08:41 PM
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Tough crowd tonight! Oh well. If you're going to present specific, substantive reasons why and examples of universal cats damaging other systems in a truck I'm listening. The snide remarks are cute, though.
 
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Old Aug 23, 2021 | 06:03 AM
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The experience i have with universal cats is they throw check engine lights (wont pass inspection). Granted both times i used them they were on cars. But the issue was the sensor holes where not in stock location throwing the reading off.. If you have to worry about inspections then look for one with sensor holes as close as stock location as you can. Then dont get rid of original until you get inspected making sure you can pass. Theres a reason stock cats are so expensive, they work...
 
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Old Aug 23, 2021 | 06:41 AM
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A good cat aint cheap. All of the el cheapos cats don't meet epa standards so no really reason to run one unless you have a visual inspection. . Kooks Green Cats are nice but $500 for the 3".
Also not sure on many non weld in aplications. We don't have rear o2 so no code throwing issues at least on mine not sure on CA emissions ones.

This is the setup I fabbed on the V10 to quiet it down to stock level since the muffler was rusted when I bought it, had most of it it my parts pile for other builds.
SPD Y to 3" V Band Clamp, Kooks 3" Green Cat, 3" Exhaust tubing to Dynomax Ultra Flow Muffler to Mangna Flow XL Muffler to new stock tail pipe.

Started with just the Magnaflow XL muffler but was too loud on long tows.
 
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Old Aug 23, 2021 | 08:45 AM
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From the picture i seen there is a sensor in cat close to end so that would throw a code.. Maybe i am looking at the wrong cat..
 
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Old Aug 23, 2021 | 10:04 AM
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Mine only has Bank 1&2 upstream of the cat. CA emissions Excursion may be different.
 
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Old Aug 23, 2021 | 10:36 AM
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Yes, CA spec EXs have the third after cat O2 sensor.
 
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Old Aug 23, 2021 | 10:53 AM
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You can always have your tuner flip it off or build an 02 simulator.
 
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Old Oct 1, 2021 | 12:25 PM
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Wrong Thread.
 
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