5280CLS

I am looking for a set of factory catalytic converters. I have an 06 CLS55 but from my research, cats from M113k equipped CL55, S55 and E55 will work. I am located in Denver, CO.

Plutoe

Search for LQK, they are national scrappers

5280CLS

Thank you for the reply but I already checked with LKQ and many other used car parts yards and they don't have them.

HLG600

Unfortunately, it is very difficult to find OE catalytic converters used and in good condition for these cars.

What issue are you trying to resolve?

5280CLS

The previous owner thought it would be a great idea to install headers and throw away the stock cats I purchased the car and need to pass emissions.

HLG600

I can understand the frustration there. If you can't find a good used set, you have a few alternate options at this point:
.

1. See if the company that makes the headers on your car now has a catted option and purchase just that section.
2. Replace the headers with different aftermarket kit that is catted.
3. Purchase some high-quality cats and have a good exhaust shop weld them in.
4. Shell out the $$$ for OE replacements.

5280CLS

1. Car has Kleeman mid-length headers and they don't make a catted set. I already drove down and talked to them as they are about an hour from me.
2. It's hard to pass with aftermarket cat's here, almost seems like California at times.
3. I have a fabricator who can build me what I need but after materials, labor, 4 GESI cats and buying stock headers, I'll be close to the cost of the OEM right cat pipe with a dealer discount... might as well buy the other one too at that point.
4. Don't really want to go this route.... I'd rather look for a whole wrecked car from IAA (which I have seen go for surprisingly cheap before) but I am out of shop space at the moment to take on a part out project...
Thank you for the replies!

kevm14

Gutted cats (or any universal cat to avoid odors) and turn the cat monitors off?

l pagan

This is what I have on my car https://www.magnaflow.com/collection...tic-converters

MartinWake

I have my stock cats installed and will do a cat delete soon I can sell them to you but I have a 03 CL55 not sure if they are the same.

cetialpha5

It's basically illegal to sell used ones unless they've been tested. Because of that, pretty much no one sells them used. Big fine if you do, I think it's like 25k. Easier to get away with it if you buy them from an individual. I believe it's also illegal to remove them too.

5280CLS

kevm14: Our state requires cars to go on a treadmill as they call it "dyno" if a car is 12 years or older starting with 1982. A OBD2 connection is established with the vehicle and a large "hose" is placed over the exhaust tips to evaluate the outgoing exhaust gas... Universal cats work on cars with OBD1 parameters, they are different "looser" than OBD2.

I pagan: I see you are in NJ, hear the emissions/ inspections are pretty strict out there. Does your state require cars to go on a emissions dyno with an OBD2 cable plugged in?

MartinWake: Where are you located? You can PM me more info on when you will be doing the job and how much you would like for them. Thank you!

cetialpha5: You are correct sir...

kevm14

Wow. I didn't realize ANY states did a dyno test with OBD-II cars. I always thought southern New England was the worst but even these states (MA, RI, CT) do NOT require dyno tests on OBD-II cars. In fact, MA, RI and probably CT waived ALL emissions testing for pre-OBD-II cars. RI was the last holdout with the dynos and finally got rid of them a few years ago. But none of these states dynoed OBD-II cars to my knowledge and if they did it was a long time ago. The whole point of OBD-II was that you trust the system to monitor itself. That's one of the major drivers behind it. It's odd that a state thinks OBD-II emissions compliance fraud is such a big deal (even as I brought it up) as to make everyone do a dyno test anyway. Kind of blows my mind.

What state are you in?

HLG600

3. ARH makes a catted set and their quality is top-notch - https://americanracingheaders.com/pr...nt=29943913540
4. I don't blame you considering it is an unreasonably expensive route.

No such thing in NJ. Many years ago an exhaust probe was used to take a reading but I don't believe this was done on a dyno.

Nowadays, they just check for the active status of emissions monitors and perform a visual inspection to verify cats are present.

Hollowed cats and a tune that is clever with the monitors = Pass.

MartinWake

Not in Florida lol

MartinWake

I am in Florida and I was gonna do the job this week but my crank pulley broke so now I am waiting on that...

cetialpha5

It's a federal EPA law so I believe it applies in all states. However lots of people do it illegally and don't get caught.

As for strict testing, MA says emissions don't apply if the car is more than 15 years old. They only do a safety check, they don't do any diagnostics and they don't care if the CEL is on.

thovey

from what I understand here in the CO front range area you can run headers, even long tubes, with aftermarket cats as long as you have all four of the o2 sensors hooked up. only the primary cats are required.

you shouldn't have much trouble finding a performance shop that would be happy to weld in some aftermarket cats and make sure your o2's are installed and wired up.

5280CLS

kevm14: I'm in Colorado

HLG600: I have looked at that set up... It may or may not pass... Sometimes you get an inspector who really loves their job and they'll put a mirror under the car, if the cats don't "look" OEM, you are in for a treat! A friend of mine has a car dealership and I've fixed and ran lots of cars through emissions for him, the aftermarket cats are a hit and miss.. granted many other factors contribute to an emissions test but to save time we'll just say other "issues" were resolved before narrowing it down to the cats. Lucky you, that definitely would not work here........

MartinWake: Let me know when you are ready

cetialpha5: Lucky....

thovey: The distance of how far they are mounted from the cylinder head and the material they are made from makes an unbelievable difference... too far away and not enough heat they don't reach their "ignition" temperature which in turn won't have a substantial effect on the reading. This is why OEM manufactures place the cat as close as possible to the cylinder head or turbo. My o2's are wired up and installed, I have a fabricator and finding a good aftermarket cat is possible but.... for the time being I would like to find a set of OEM cats as I have always had the best luck with OEM components.

l pagan

Just OBD2 no dyno

kevm14

If CO lets any shop become licensed to do state inspections, then that's just like what I'm used to and you DO NOT go to a dealer. Even though the rules are the same, the dealers are known to expect (and understand) 100% factory stock. Indie shops, not so much.

Sulaco

I'm in TN where they don't give a crap and it passes anyway.

But my previous owner also ripped out all cats and I really wish at least 2 of them were still in the car. I hate the smell and I'm always nervously watching the smoke that appears out the back when I apply any fun level of throttle. I would happily sacrifice 10hp for the peace of mind and the ability to cruise with my windows down and not gag on the odor.

5280CLS

In CO the emissions facilities are state run

knowbenz

They can be sold as scrap technically but not used.

That being said, what is the going rate for a set of factory converters for scrap? I have a lead on a set of factory scrap converters if your looking to recycle them for Precious Metals

hayseed

iTrader: (2)

i dont understand why you can not run aftermarket cats as long as it passes emissions legally ? ,,, so the state will not let you drive a car unless its 100% OEM exhaust ? what if Mercedes does not make these anymore ?