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996 aftermarket catalytic converters - Colorado emissions?

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

Discussion summary

YOUR RESEARCH996 aftermarket catalytic converters - Colorado emissions?

Leading reported evidence

Run into issues

Suggestion or failed attempt

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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion

Unless, you live in California, if you live in CA you would actually pass SMOG but as soon as your technician peeks under the car for the visual test, you would run into issues!

996 aftermarket catalytic converters - Colorado emissions?
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Leading evidence: 'Run into issues' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run into issues' (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 · 7 captured posts examined · 0 partial discussions

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Suggestion or failed attempt

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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 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

If nothing keep them around for test/sell time.

996 aftermarket catalytic converters - Colorado emissions?

Test 996's

Suggestion or failed attempt

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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

El Paso county doesn't do emissions but the other counties would do treadmill testing for 996's.

996 aftermarket catalytic converters - Colorado emissions?

Test consists of

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

Call the co dmv and ask them what their emission test consists of.

996 aftermarket catalytic converters - Colorado emissions?

Use are hjs cats directly imported

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
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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

The cats that we use are HJS cats directly imported from Germany.

996 aftermarket catalytic converters - Colorado emissions?
Frequently discussed actions (5)

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

Run into issues

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

Unless, you live in California, if you live in CA you would actually pass SMOG but as soon as your technician peeks under the car for the visual test, you would run into issues!

996 aftermarket catalytic converters - Colorado emissions?

Test /sell time

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

If nothing keep them around for test/sell time.

996 aftermarket catalytic converters - Colorado emissions?

Test 996's

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

El Paso county doesn't do emissions but the other counties would do treadmill testing for 996's.

996 aftermarket catalytic converters - Colorado emissions?

Test consists of

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

Call the co dmv and ask them what their emission test consists of.

996 aftermarket catalytic converters - Colorado emissions?

Use are hjs cats directly imported

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

The cats that we use are HJS cats directly imported from Germany.

996 aftermarket catalytic converters - Colorado emissions?
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.

7 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: 20261027T025149Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Looking at Fabspeed or similar cats for my 2001 C4. Anyone know of issues passing emissions in Colorado? El Paso county doesn't do emissions but the other counties would do treadmill testing for 996's. Thank You,

POST 2Original post

All depends...Some cars react well to the swap and some I've read will trigger a CEL. I thought emission testing was a "State" thing vs County? I wouldn't be concerned with other county's, just yours.

POST 3 / ORIGINAL POSTEROriginal post

County where I live is the only one that doesn't require emissions. I'll be moving at some point into a county that will and/or also concerned about potentially selling it to another buyer.

POST 4Original post

Usually as long as they dont trip the check engine light u will pass. If u r i ca u need the carb sticker if not an oem part. Call the co dmv and ask them what their emission test consists of.

POST 5Original post

What's wrong with the old CATs? If nothing keep them around for test/sell time.

POST 6Original post

I can't speak for that brand, but 200 cell cats have passed VT state emissions inspections every year I've had them. I've had them on both 996.1 and 996.2.

POST 7Original post

Quotes source post: 16094185

Hey! The cats that we use are HJS cats directly imported from Germany. If your system is equipped with a Fabspeed product with cats, it will pass emissions. Guaranteed. Unless, you live in California, if you live in CA you would actually pass SMOG but as soon as your technician peeks under the car for the visual test, you would run into issues!

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