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Switchable valve exhaust

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

Discussion summary

YOUR RESEARCHSwitchable valve exhaust

Leading reported evidence

Use from rennlist members

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've got a set of headers and fabspeed 200 cell cats ,I bought used from rennlist members .

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Switchable valve exhaust
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Leading evidence: 'Use from rennlist members' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use from rennlist members' (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 · 4 captured posts examined · 0 partial discussions

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Use non-switchable in the past

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 haven't used the switchable so can't comment on that but I've used his non-switchable in the past.

Original post Read captured discussion
Switchable valve exhaust
Frequently discussed actions (2)

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

Use from rennlist members

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've got a set of headers and fabspeed 200 cell cats ,I bought used from rennlist members .

Original post Read captured discussion
Switchable valve exhaust

Use non-switchable in the past

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 haven't used the switchable so can't comment on that but I've used his non-switchable in the past.

Original post Read captured discussion
Switchable valve exhaust
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: 20261026T163944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I've got a set of headers and fabspeed 200 cell cats ,I bought used from rennlist members . I am thinking for the mufflers of buy new ones that are switchable , like the pse ones but not at those crazy prices . I found these . Has anyone used them before ? http://www.speedtechexhausts.com/ast1_010.htm

POST 2Original post

I seem to recall at least a couple members here having these. John is a sponsor here(or was at least). His service is great and they make great products. I haven't used the switchable so can't comment on that but I've used his non-switchable in the past. Construcion/quality/fitment were great.

POST 3 / ORIGINAL POSTEROriginal post

Thanks , it's good to hear the build quality is good , I've seen some offshore made 996 exhausts that were pretty poor . A friend bought a set off ebay , I spent about 3 hours fixing up the welds before we fitted it , pretty poor . Not the best steel either. I'll start putting the pennies aside . I'm curious how the valves are actuated , it looks like a vacuum system . How does the pse system open?

POST 4Original post

Quotes source post: 12825328

Both are vacuum. But if you get the aftermarket one, ditch the remote and just hard wire it to a factory PSE switch. Never understood the remote control idea.

This is a source reference. Confirm exact model applicability in the original material.