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Catalytic converter installation?

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHCatalytic converter installation?

Leading reported evidence

Use with 45k miles)

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
Cats on my 01 C2 started making noise so I bought OEM replacements (used with 45k miles).
Original post Read captured discussion
Catalytic converter installation?

Frequently discussed work

Recommend some rust penetrating oil

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
It is very easy, I'd recommend some rust penetrating oil, replace the gaskets between the cat and the muffler, new bolts at the flanges and possible the slide clamps but they can be expensive ($50/each).
Original post Read captured discussion
Catalytic converter installation?

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Leading evidence: 'Use with 45k miles)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend some rust penetrating oil' (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.

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1 matching discussions · 4 captured posts examined · 0 partial discussions

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Recommend some rust penetrating oil

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
It is very easy, I'd recommend some rust penetrating oil, replace the gaskets between the cat and the muffler, new bolts at the flanges and possible the slide clamps but they can be expensive ($50/each).
Original post Read captured discussion
Catalytic converter installation?

Replace from a fabspeed x-pipe back

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
I have to change from a FabSpeed x-pipe back to OEM every 2 years (Cali smog).
Original post Read captured discussion
Catalytic converter installation?

Frequently discussed actions (3)

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

Recommend some rust penetrating oil

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
It is very easy, I'd recommend some rust penetrating oil, replace the gaskets between the cat and the muffler, new bolts at the flanges and possible the slide clamps but they can be expensive ($50/each).
Original post Read captured discussion
Catalytic converter installation?

Replace from a fabspeed x-pipe back

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
I have to change from a FabSpeed x-pipe back to OEM every 2 years (Cali smog).
Original post Read captured discussion
Catalytic converter installation?

Use with 45k miles)

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
Cats on my 01 C2 started making noise so I bought OEM replacements (used with 45k miles).
Original post Read captured discussion
Catalytic converter installation?

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

POST 1 / ORIGINAL POSTEROriginal post

Cats on my 01 C2 started making noise so I bought OEM replacements (used with 45k miles). is this a hard DIY for a guy with limited talent? How long should it take, what�s the process and what other parts do I need? any good wrenches in NE Ohio want a side job? Thx!

POST 2Original post

It is very easy, I'd recommend some rust penetrating oil, replace the gaskets between the cat and the muffler, new bolts at the flanges and possible the slide clamps but they can be expensive ($50/each).

POST 3Original post

Quotes source post: 16798054

Super easy, should take about 2 hours. You'll need a couple of 13mm wrenches for the flanges, a 17mm socket for the clamps and a 22mm open end wrench for the O2 sensors.. MAKE SURE YOU MARK YOUR O2 SENSORS as above and below cat, other wise you'll throw codes. Can be done without removing the bumper cover, but that only takes me 10 min at this point. I have to change from a FabSpeed x-pipe back to OEM every 2 years (Cali smog).

POST 4Original post

I took my mufflers off but not cats, it would have just been a few more bolts on each side. The worst part is dealing with the hardware, it gets terribly rusty. None of mine snapped thankfully but lots of penetrating oil helps.

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