Rennlist

Exhaust sound

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHExhaust sound

Leading reported evidence

Replace 4 o2 sensors as well

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 · Original poster
I also replaced all 4 O2 sensors as well.
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Exhaust sound

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Leading evidence: 'Replace 4 o2 sensors as well' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 4 o2 sensors as well' (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 · 3 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Replace 4 o2 sensors as well

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 · Original poster
I also replaced all 4 O2 sensors as well.
Original post Read captured discussion
Exhaust sound

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.

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

Outcome without a verified action link
CEL is gone and I have driven about 15 times since the install.
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I was getting the P0430 cat inefficiency CEL. I decided to buy some inexpensive Davico cats from Rockauto for both banks, and I am pretty happy with how the car sounds. I am thinking that my 16 year old original cats were restricking some flow. Not sure if they sound any different maybe someone can let me know after listening to the attachments.

POST 2Original post

CEL gone? Stock mufflers? It certainly doesn't sound stock - it's tough to say if they sound "different"? Different than what? Maybe you should have done a "before & after" recording...

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 14806503

CEL is gone and I have driven about 15 times since the install. Mufflers are stock. I've never heard my car from outside and never had a recording like this. I also replaced all 4 O2 sensors as well. I do feel like the throttle response is a little quicker. I have heard my car with windows down when driving near a concrete wall etc. It had always seemed to have a nice note but it seems a little more aggressive now. I was considering getting a sporty sounding exhaust. I know that these upgrades don't do much of anything for power, but was interested in a little better sound. After hearing this video, I am thinking the stock exhaust sounds just fine.

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