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Bad catalytic converter = Aural Elation!

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16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHBad catalytic converter = Aural Elation!

Leading reported evidence

Replace entire exhaust system

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Replaced the entire exhaust system with the Fabspeed Performance Package (new headers, X-pipes, cats, O2 sensors, mufflers, exhaust tips, etc.

Bad catalytic converter = Aural Elation!
Frequently discussed work

Replace cats

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Just thought I would share my experience and if you are considering/need to replace your cats, this is a fun combo.

Bad catalytic converter = Aural Elation!
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Leading evidence: 'Replace entire exhaust system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace cats' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 16 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace under 8 year emissions mandated warranty at dealer

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I had both mine replaced under 8 year emissions mandated warranty at dealer but I cannot fathom how OEM Porsche cats are $5k+ and yes the dealer bill was closer to $6k than $5k.

Bad catalytic converter = Aural Elation!

Replace cats

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Just thought I would share my experience and if you are considering/need to replace your cats, this is a fun combo.

Bad catalytic converter = Aural Elation!

Test every few years

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

They only require smog testing every few years.

Bad catalytic converter = Aural Elation!
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace cats

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Just thought I would share my experience and if you are considering/need to replace your cats, this is a fun combo.

Bad catalytic converter = Aural Elation!

Replace entire exhaust system

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Replaced the entire exhaust system with the Fabspeed Performance Package (new headers, X-pipes, cats, O2 sensors, mufflers, exhaust tips, etc.

Bad catalytic converter = Aural Elation!

Replace under 8 year emissions mandated warranty at dealer

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I had both mine replaced under 8 year emissions mandated warranty at dealer but I cannot fathom how OEM Porsche cats are $5k+ and yes the dealer bill was closer to $6k than $5k.

Bad catalytic converter = Aural Elation!

Test every few years

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

They only require smog testing every few years.

Bad catalytic converter = Aural Elation!
Coverage and how to read this overview

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.

16 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.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T025149Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So my 2003 C4S would not pass emissions (Pennsylvania). It was deemed that one of the primary cats had failed and the other was on its way out. OEM replacement = $2800 PER Cat - Ouch. After a discussion with my service tech at my local Dealer, they said they had a lot of luck with Fabspeed 996 Sport Catalytic Converter X-Pipe Fabspeed X Pipe with BOTH Cats = ~$1800. Less Ouch. Done. The result with the new Cat Pipe(s) and the Fister Exhaust combination has a new grumble that makes me think I am in a new car. Its a delightful aural experience and I gained more HP to boot! Just thought I would share my experience and if you are considering/need to replace your cats, this is a fun combo. Cheers!

POST 2Original post

If you were failing emissions WITH catalytic converters, how do you anticipate passing after removing them?

POST 3Original post

Ah, the Fabspeed includes high-flow cats. Got it.

POST 4Original post

Quotes source post: 10789865

That was my first thought as well, perhaps I just don't understand the post.

POST 5Original post

Fabspeed sells a couple of items. Ones is a cat bypass (delete); the other is an x-pipe with very small high-flow cats. OP bought the latter: "Fabspeed X Pipe with BOTH Cats..."

POST 6Original post

Greg, I had the same thing happen with my 2000 C4. One cat was out and the other was on the way out. OEM replacements was out of the question, so I discussed it with the mechanic and decided to go with the Speed Venture X pipe with the high flow cats and I could not be happier . Like your car, I already had the Fister D sport mufflers. The combination of X pipe and Fister mufflers give a silky smooth sound I am in love with the sound of my car

POST 7Original post

Just to be clear, 996s don't have primary and secondary catalytics. They only have one for each bank. The scanner would show primary because of the software coding, this is not exactly true.

POST 8Original post

Quotes source post: 10790110

What is not exactly true

POST 9Original post

I had both mine replaced under 8 year emissions mandated warranty at dealer but I cannot fathom how OEM Porsche cats are $5k+ and yes the dealer bill was closer to $6k than $5k. But I am equally shocked that aftermarket cats are $2k :/ WTF? That said are the FabSpeed 200 cel cats? Any droning at highway speeds?

POST 10Original post

I had the same thing happen recently... one of my OEM cats went bad. Replaced the entire exhaust system with the Fabspeed Performance Package (new headers, X-pipes, cats, O2 sensors, mufflers, exhaust tips, etc. Pix and sound clip video below: . Fabspeed Drive by clip2 - YouTube

POST 11Original post

Cuda 911: Are you passing CA smog with that set-up?

POST 12Original post

Quotes source post: 10790313

I guess it's called profit margin. Dealer originally quoted $2,800 for one cat, then $2,360, then sold it to me for $1,646. Ridiculous in any case. I was a few months beyond the 8 years and PCNA wouldn't budge on that.

POST 13Original post

Universal Cell 200 cat elements are $200. Alternative is to have these welded up for another $100 and done.

POST 14Original post

Quotes source post: 10790448

Haven't had to smog it year. They only require smog testing every few years. Fabspeed assures me it will pass. My mechanic says it will pass too. I will raise holy hell with them both if doesn't.

POST 15Original post

The porsche OEM price is just criminal. For $2,800.00 per converter it better have internals made from solid 24k gold. Any semi-completent shop can weld in a new cat converter into our exhaust. There are hundres of sizes/shapes to chose from. Here is the basic non-fascist state leagal converter for older Porsches. $74.

POST 16Original post

Quotes source post: 10790571

Yeah, but then you don't get all those program mileage points on your credit card.

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