21 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBest aftermarket catalytic converter
Reported or suspected cause
cat
Reported cause
No successful repair reported for this finding.
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0
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0
Reported fixes
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Reported cause
Don't know what the issue is with your cat, but these may be of help.
Leading evidence: 'cat' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'cat' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace internals' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed · Original poster
I was hoping someone can point me in the right direction while I keep doing research, currently got the car at the shop misfiring on bank 2 because of the new/used cat I had installed.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed
I have used Davico on Toyotas and Hondas with success.
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Discussions that contain suggestions
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Suggestion
We ship you a cat and you replace the internals with a 200 cell HJS and ship the cat we sent to you back to us?
Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
I was hoping someone can point me in the right direction while I keep doing research, currently got the car at the shop misfiring on bank 2 because of the new/used cat I had installed.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
21 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
2 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
And it didn't work unfortunately, after a couple of days the check engine light came back.
What would you say is a good aftermarket catalytic converter?
I was replacing the muffler delete on my car with an oem exhaust I bought from another member and it looks like 1 of the cats is bad. Looking for some good alternatives.
Thanks in advance
So you haven�t had any luck since last month? Have you searched recent cat threads here? Lots of posts from last two years about many aftermarket options from FVD, Cargraphics, Top Gear, Soul, Fabspeed, etc. Defining �best� option depends on if you�re targeting price point, bling factor, longevity, stock guts or 200 cell.
Gotcha, i could definitely have added a better description. I'm only looking to replace the passenger side cat. Budget minded, but ultimately need it to last.
I tried searching through the threads but got a bunch of unrelated topics. I was hoping someone can point me in the right direction while I keep doing research, currently got the car at the shop misfiring on bank 2 because of the new/used cat I had installed.
Have you confirmed the O2 sensors are good? Do you need C.A.R.B. compliance? Are you looking for the best or are you budget minded?
If you are only looking to replace one I think OEM is the only answer, new or used. If you're open to replacing both Top Gear is a popular budget choice.
Top Gear 200 cell sport cats
Beyond that you're looking at $2k plus. Good luck.
Rad,
Did a quick google search and found this article. It will give you an understanding on what 02 sensor spacers are and what they do.
Don't know what the issue is with your cat, but these may be of help. Most companies that sell exhaust systems have them. just about everyone running an after market cat system use them.
https://hondatheotherside.com/what-d...iency%20errors
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Gert, very interesting. 3 questions.
1. We ship you a cat and you replace the internals with a 200 cell HJS and ship the cat we sent to you back to us?
2. Is this program only available for oe cats or can you also do it with aftermarket cats?
3. What's it cost and how long of a turnaround?
Thanks
The easiest is when we can modify your own cats. That way you can also leave the lambda sensors in place.
We have a service where we have FedEx to pick up the parcel, we upgrade the cats to 200 cell and we ship them back.
It takes about -8 to 10 days before you have the cats back.
Prices go from 1100 to 1400 euro all in , depending on the type of cat (early �later style)
We can only do this for the original Porsche cats, no aftermarket.
Gert, great idea but a little pricey for the US. We can get a top of the line set of cats for $2,200 versus sending in old and heavy oem cats for a $2,200 refit with a 200 cel HJS. But I like the idea and hope you guys can price it to make sense. Please correct me if I misunderstood your pricing. Would love to see more of this innovation in the industry.
The quote prices are for a pair....
True, a thick walled housing and big cat element weighs more than a small cat element with thin wall housing/piping.
Thanks for the clarification.
Two cats for $1,100 is half the cost of an aftermarket set and boatloads less than a new oem set. It's a very good option.
Question, given the 200 cell, have you found that refitted cats need an O2 extender?
I tried a pair and the codes came back. Came to find out my fuel pump was bad and was sending too much fuel. Gonna drive around this weekend to test it out. Appreciate the assistance.
This is a source reference. Confirm exact model applicability in the original material.
