Planet-9

987.1 Boxster S vs Cayman S exhaust header differences

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

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YOUR RESEARCH987.1 Boxster S vs Cayman S exhaust header differences

Leading reported evidence

Check respective pet catalogs, there are several part numbers listed

Suggestion or failed attempt

No successful repair reported for this finding.

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
Checking the respective PET catalogs, there are several part numbers listed for 2005 Boxsters (both M96 and M97 engines).
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987.1 Boxster S vs Cayman S exhaust header differences

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Leading evidence: 'Check respective pet catalogs, there are several part numbers listed' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check respective pet catalogs, there are several part numbers listed' (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

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Test of the exhaust headers

Suggestion or failed attempt

No successful repair reported for this finding.

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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.

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Suggestion
Is anyone aware of a back to back test of the exhaust headers from
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987.1 Boxster S vs Cayman S exhaust header differences

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.

Check respective pet catalogs, there are several part numbers listed

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
Checking the respective PET catalogs, there are several part numbers listed for 2005 Boxsters (both M96 and M97 engines).
Original post Read captured discussion
987.1 Boxster S vs Cayman S exhaust header differences

Test of the exhaust headers

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
Is anyone aware of a back to back test of the exhaust headers from
Original post Read captured discussion
987.1 Boxster S vs Cayman S exhaust header differences

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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

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0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T042512Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Is anyone aware of a back to back test of the exhaust headers from Boxster and Cayman ? I picked up a complete exhaust system from a local Cayman owner who had fitted a full Soul system and noticed the very different design of his header and mine (05 BS 3.2l) Just from looking at the two I would have thought the Boxster headers would flow better and the way the gases are fed towards the cat look better too.

POST 2Original post

Sorry but don't know the answer to your question.. IMHO, but I would choose the ones on the bottom picture..

POST 3Original post

Checking the respective PET catalogs, there are several part numbers listed for 2005 Boxsters (both M96 and M97 engines). Looks like Boxsters and Caymans with the M97 engines have the same manifold part numbers. But there is a revision listed for 2007 Cayman . Ex 987.113.108.03 and 987.113.108.05

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