Rennlist

WTB stock cats

Add to repair workspace

New repair projectOpen repair workspace

Original source

3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWTB stock cats

Leading reported evidence

Replace four oxygen sensors

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 am getting poor converter efficiency CELs maybe once or twice a year even after replacing all four oxygen sensors.
Original post Read captured discussion
WTB stock cats

Read full discussion summary

Leading evidence: 'Replace four oxygen sensors' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace four oxygen sensors' (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 · 3 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Set cluttering up their garage

Suggestion or failed attempt

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
So, who has a set cluttering up their garage that I can take off their hands?
Original post Read captured discussion
WTB stock cats

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.

Replace four oxygen sensors

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 am getting poor converter efficiency CELs maybe once or twice a year even after replacing all four oxygen sensors.
Original post Read captured discussion
WTB stock cats

Set cluttering up their garage

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
So, who has a set cluttering up their garage that I can take off their hands?
Original post Read captured discussion
WTB stock cats

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.

3 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: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

For a 996.2, 40th Anniversary if it matters. I am getting poor converter efficiency CELs maybe once or twice a year even after replacing all four oxygen sensors. Might have a bit of rattle but it's hard to tell over the sound of the muffler bypass I can't go the 200-cell aftermarket route because it's not allowed for SCCA Street class. I am allowed to go with "OE-type" aftermarket but would rather just get some lower-mileage takeoffs from a Rennlister. So, who has a set cluttering up their garage that I can take off their hands? I'd prefer to drive somewhere local to North Florida but could pay for shipping, of course.

POST 2Original post

I'll have a set of pulls off an 03 really soon. I'm upgrading to Fabspeed X-pipe with high flow cats. But I'm in Colorado...

POST 3 / ORIGINAL POSTEROriginal post

I bit the bullet and ordered a pair off of a guy on eBay. Price wasn't a steal but wasn't too bad either.

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