18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHC4S exhaust vs C2
Leading reported evidence
Disconnect diode and never touch the dash mounted button
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
I disconnected the diode and never touch the dash mounted button...
Leading evidence: 'Disconnect diode and never touch the dash mounted button' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect diode and never touch the dash mounted button' (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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Performed · outcome unconfirmed
Based on how it�s installed (I�ve removed the mufflers and the switch before) and it looks factory to me.
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed
i have the PSE on my car without the button (installed after took delivery).
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.
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Performed · outcome unconfirmed
Either that�s false, it was installed by a previous owner, or vinanylytics.com (and others) are wrong.
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.
18 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.
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Generation: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
my 03 c4s, when i look at the build sheet, lists option XLF (sports exhaust) among others, thus i dont think it came standard on 4s models but i could be wrong
C4S stock comes with standard exhaust (non-sport). Just like any 996 though it could be ordered with the sport exhaust, plug your VIN into a vin decoder and it should tell you if you have it. It also could have been ordered at the dealer as a dealer installed option.
Here is a review of the C4S when first available; it describes many differences, but I can't recall any mention of different exhaust.
https://rennlist.com/forums/996-foru...l#post14125769
I�m pretty sure PSE (Porsche Sports Exhaust) was an option any 996 variant but seems more prevalent on C4s cars. The build sheet on my car makes no reference of PSE but is equipped, so anyone shopping for a 996 should look for the nifty button on the dash vs the build sheet to confirm. And for what it�s worth the PSE is AWESOME.
Cars that had the Sports exhaust installed as a dealer option will not have the button on the dash. The sports exhaust mode on those cars will be constantly engaged.
Either that�s false, it was installed by a previous owner, or vinanylytics.com (and others) are wrong. It�s listed on no build sheet I�ve pulled, and it has the button and works like every other PSE equipped 996 I�ve ever been in. Based on how it�s installed (I�ve removed the mufflers and the switch before) and it looks factory to me.
Mine has the PSE button and stock exhaust because the PO was i dip**** and took it off because
it was too loud, the mechanic bought it for 500 bucks plus his stock exhaust.
2003 factory PSE is always engaged, the button on the console, when engaged, turns off the PSE. I�ve read that this is different vs other years. Mine is listed as an option as my build sheet above indicates.
i have the PSE on my car without the button (installed after took delivery). Default is open which is what you want anyway. The reason for the more muffled (i.e. via button pressed) is to conform to EU city limit sound laws.
You�re mostly right. There�s actually a diode in the PSE relay that automatically closes the butterflies (muffled sound like when the button in the dash) under speeds of 34mph (or somewhere in that mph range) � the diode that does this is to conform to EU city limit sound laws. The dash mounted button is for when you wanna feel like more of a sophisticate when pulling in to the country club. Me? I disconnected the diode and never touch the dash mounted button... #becauseracecar, lol.
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