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Catylitic Converter mods???

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCatylitic Converter mods???

Leading reported evidence

Install on my 99c2 w/o any other mods

Performed · outcome unconfirmed

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 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

I had the GT3 cats installed on my 99C2 w/o any other mods.

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Catylitic Converter mods???
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Leading evidence: 'Install on my 99c2 w/o any other mods' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install on my 99c2 w/o any other mods' (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 · 9 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Run maybe 1200 or so

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

I think they are 100 cell or 200 cell and run maybe 1200 or so.

Original post Read captured discussion
Catylitic Converter mods???

Set while were at it

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

yeah anyone want to sell a set while were at it?

Original post Read captured discussion
Catylitic Converter mods???
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.

Install on my 99c2 w/o any other mods

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

I had the GT3 cats installed on my 99C2 w/o any other mods.

Original post Read captured discussion
Catylitic Converter mods???

Run maybe 1200 or so

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 think they are 100 cell or 200 cell and run maybe 1200 or so.

Original post Read captured discussion
Catylitic Converter mods???

Set while were at it

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

yeah anyone want to sell a set while were at it?

Original post Read captured discussion
Catylitic Converter mods???
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.

9 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I've noticed a few posts that mentioned aftermarket, and GT3 cats. Does anyone have conclusive thoughts on cat modifications and/or upgrades? Based upon so many unsuccessful modified exhaust reviews on this forum...I imagine screwing wiht the cats will prove to be a waste of time. Regards,

POST 2Original post

I had the GT3 cats installed on my 99C2 w/o any other mods. The cats are the only thing that will give you a slight improvement. The car sounds a bit beefier with them as well. I think it is a worthy investment.

POST 4Original post

Will it pass emissions with the race or GT3 cats? How much do they cost?

POST 5Original post

Get the fvd ones. I think they are 100 cell or 200 cell and run maybe 1200 or so. I hear they make decent power no matter what some other people might say.

POST 6Original post

FVD are the ones i have, they are in fact factory GT3 cats, factory part number is stamped right on them.

POST 7Original post

yeah anyone want to sell a set while were at it? I am interested!

POST 8 / ORIGINAL POSTEROriginal post

Are there any conclusive tests, dyno results, seat of the pants thoughts, etc.?? What exactly will happen if I have GT3 cats and fabspeeds?

POST 9 / ORIGINAL POSTEROriginal post

What happens if they are bypassed all together? Aside from legal implications...

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