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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHIDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Use with a tune

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Performed · outcome unconfirmed
That combo is best when used with a tune, but I don't recommend a tune on a stock engine.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Replace beyond

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Suggestion
and no change beyond that.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Use with a tune' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'most noticable perfdormance change btw' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace beyond' (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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most noticable perfdormance change btw

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Identified cause: 1
Suspected cause: 0
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Suspected cause
Desnorkeling/ PSE / IPD / 74mm TB / +100 octane fuel were "slightly" noticeable all together, but you get used to it so fast...my Sprintbooster was probably the most noticable perfdormance change btw.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace beyond

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
and no change beyond that.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace btw

Suggestion or failed attempt

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Unsuccessful attempts: 1
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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.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Desnorkeling/ PSE / IPD / 74mm TB / +100 octane fuel were "slightly" noticeable all together, but you get used to it so fast...my Sprintbooster was probably the most noticable perfdormance change btw.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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.

Replace beyond

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
and no change beyond that.
Original post Read captured discussion
IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace btw

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
Desnorkeling/ PSE / IPD / 74mm TB / +100 octane fuel were "slightly" noticeable all together, but you get used to it so fast...my Sprintbooster was probably the most noticable perfdormance change btw.
Original post Read captured discussion
IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use with a tune

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
That combo is best when used with a tune, but I don't recommend a tune on a stock engine.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported and suspected causes (1)

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

most noticable perfdormance change btw

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
Desnorkeling/ PSE / IPD / 74mm TB / +100 octane fuel were "slightly" noticeable all together, but you get used to it so fast...my Sprintbooster was probably the most noticable perfdormance change btw.
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IDP Plenum and 74 throttle body - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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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.

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

986Forum: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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

Outcome without a verified action link
and no change beyond that.
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Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

On a stock Box S (986)car, would I notice any difference from the seat or not really noticeable without other mods? Thanks

POST 2Original post

Quotes source post: 658045

No. You might notice a slight increase in mid-range torque, but that's it. That combo is best when used with a tune, but I don't recommend a tune on a stock engine. Plus, depending on the tune, you can get some wild fuel / air mixtures. I had a friend with an 09 Cayman that had one of the two famous tunes installed. You could smell raw fuel at the exhaust, which caused headaches from the CEL due to the fuel being sniffed by the 2nd O2 sensor. I have an IPD plenum and 83mm TB on my Cayman with no tune. If I had it to do over, I'd spend that $1K on suspension parts from Tarrett.

POST 3Original post

think of it as an expensive sprint booster - small throttle inputs make a bigger difference with the larger throttle body. you have a 1" water line with a 1" valve - 1/2 water flows when 1/2 open, all water flows when fully open. now put a 2" valve on the 1" line - all the water flows when only partially open. and no change beyond that.

POST 4Original post

Let's face reality, engine (performance) upgrades aren't worth it anymore. Most modern family cars with their turbo engines will be a challenge for our beloved classic Boxster. Some goes for the aircooled 911. Desnorkeling/ PSE / IPD / 74mm TB / +100 octane fuel were "slightly" noticeable all together, but you get used to it so fast...my Sprintbooster was probably the most noticable perfdormance change btw. ...and once an A3 out sprints you and you are having a hard time passing a fully loaded Skoda octavia RS on the autobahn, you know our Boxsters turned into a classic car. Not even mentioning EVs. Sound wise those upgrades will be a blast. 986 driveability is unrivalled compared to nowadays cars, which have completely lost that analog feel.

POST 5Original post

Quotes source post: 658046

+1 on that statement.. On the POC (Porsche Owners Club) They consider these cars a 'momentum car' for which they are awesome at..

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