fullymatted.
Back to search
Rennlist

Cat converter is gone, will this work?

Add to repair workspace
Open repair workspace
Original source
7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCat converter is gone, will this work?

Leading reported evidence

Check price

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

Recently had the codes pop up and when I check the price for OE cats, I was speechless.

Original post Read captured discussion
Cat converter is gone, will this work?
Read full discussion summary

Leading evidence: 'Check price' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check price' (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.

Read captured replies

1 matching discussions · 7 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Run straight pipes

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

I used to have a Mitsi Evo 9 and this was popular when running straight pipes to pass emission test.

Original post Read captured discussion
Cat converter is gone, will this work?
Frequently discussed actions (2)

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

Check price

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

Recently had the codes pop up and when I check the price for OE cats, I was speechless.

Original post Read captured discussion
Cat converter is gone, will this work?

Run straight pipes

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

I used to have a Mitsi Evo 9 and this was popular when running straight pipes to pass emission test.

Original post Read captured discussion
Cat converter is gone, will this work?
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.

7 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: 20261026T225432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have the dreaded CELL and my indie says it's my cat converter after pulling the codes. I used to have a Mitsi Evo 9 and this was popular when running straight pipes to pass emission test. Will this work as well in my 2003 996 carrera 2? Just a temporrary fix while I save for a new cat converter. http://www.design911.com/Porsche/996...-cmo110-ct347/

POST 2Original post

I feel your pain . Recently had the codes pop up and when I check the price for OE cats, I was speechless. Decided to go with the Speed Venture X pipe with high flow cats. Just had it installed today and could not be happier. The sound is smooth as silk and no more idiot lights

POST 3Original post

Yes, it will work fine. Although you will lose some midrange from the straight pipe but nice gain up top.

POST 4 / ORIGINAL POSTEROriginal post

Do you mind sharing where to get them and cost? If not, can you pm it to me? Muchos gracias!

POST 5Original post

Sometimes spak plug extenders on the seconday O2 sensor works too. It takes the sensor out of the exhausr stream just enough that it will fool the OBD that the cat is still ok. Not sure if it works on a 996 bit it does on other cars. They are available at any parts store. Originally they are for engines that burn a lot of oil. It moves the spark plug out of the combustion chamber and reduces the chance of fouling. About $10 for a pack of 2.

POST 6Original post

Beware that some cat elements do come loose from their housing and cause an obstruction. I have seen a lot of '02-'04 996's with faulty cats. This is how it looks like :

This is a source reference. Confirm exact model applicability in the original material.