Planet-9

Gutted Cats? Proven Dyno Gains?

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3 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHGutted Cats? Proven Dyno Gains?

Leading reported evidence

Use tapatalk

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
using Tapatalk
Original post Read captured discussion
Gutted Cats? Proven Dyno Gains?

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Leading evidence: 'Use tapatalk' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use tapatalk' (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 · 3 captured posts examined · 1 partial discussions

Frequently discussed actions (1)

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Use tapatalk

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
using Tapatalk
Original post Read captured discussion
Gutted Cats? Proven Dyno Gains?

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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.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Planet-9: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Wondering if anyone has any dyno results from gutting their cats on their 3.4 987? In the FA20 GT86 world, it was an impressive gain, sans a tune. Wondering if its the same for our platform? Cheers

POST 2Original post

I have removed my cats via headers and a Borla exhaust and am very pleased with the results. I do, however, have a number of other upgrades as well. I will be getting the car re-dyno’d soon and will post the results. I do think you will need to get a custom tune as well to get best results and no CEL light. Sent from my iPhone using Tapatalk

POST 3Original post

I have a 2008 Cayman S . I cut open and removed the 2nd set of cats from the OEM exhaust. I really can't tell it was done. It is not noticeably louder. If there is any change in performance, it is not enough to notice. I still am glad I did it, even I'm the only one who would know it was done.

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