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Rattling Muffler

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHRattling Muffler

Leading reported evidence

Repair rattling baffles in both boxes

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
Sent mine to Darin at FD Motorsports and he cleanly repaired the rattling baffles in both boxes.
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Rattling Muffler

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Leading evidence: 'Repair rattling baffles in both boxes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair rattling baffles in both boxes' (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 · 4 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.

Repair rattling baffles in both boxes

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
Sent mine to Darin at FD Motorsports and he cleanly repaired the rattling baffles in both boxes.
Original post Read captured discussion
Rattling Muffler

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.

4 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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey everyone - my 996.1 (2001) passenger side muffler is rattling so I need to replace. Part # is 996.111.121.70 Anyone here have a used one for sale by chance? I live in the Toronto, Canada area, but also have a US shipping address since I live near Buffalo. Thanks in advance.

POST 2Original post

Is it confirmed to be the muffler? The catalytic converters seem prone to rattling when the cores come loose.

POST 3 / ORIGINAL POSTEROriginal post

Had it on the hoist and it sure sounded like the muffler (different sounds by tapping on passenger side vs driver�s side while car was cold) & prevalent at start-up. My car is still almost completely stock (aside from a Rennline phone mount & a silver Carrera badge instead of a black one), so I want to keep that going instead of going aftermarket.

POST 4Original post

Quotes source post: 20674419

I had the same problems with my mufflers. Sent mine to Darin at FD Motorsports and he cleanly repaired the rattling baffles in both boxes. He said at the age of these cars it's a common repair. Then he added a bypass pipe for that perfect flat six sound. It's the single best enhancement/repair you can do outside of a suspension refresh. These are them with his signature vapor honing to make them look better than new. Bradley

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