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911uk

Exhaust Drop in one go?

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

Discussion summary

YOUR RESEARCHExhaust Drop in one go?

Leading reported evidence

Disconnect cables, mounting points etc

Suggestion or failed attempt

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 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 · Original poster

It's it possible to drop the whole exhaust system on my 2003 C4S in one go from the engine, after disconnecting cables, mounting points etc?

Original post Read captured discussion
Exhaust Drop in one go?
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Leading evidence: 'Disconnect cables, mounting points etc' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect cables, mounting points etc' (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 · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace clamps

Suggestion or failed attempt

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 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

If you're replacing the clamps then just angle grind off the cat/backbox connections.

Original post Read captured discussion
Exhaust Drop in one go?

Replace hanger brackets and plates

Suggestion or failed attempt

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 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 · Original poster

I was planning to replace the hanger brackets and plates that bolt to them, but may effect a repair if possible.

Original post Read captured discussion
Exhaust Drop in one go?

Replace manifolds and expect

Suggestion or failed attempt

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 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 · Original poster

I'm going to replace the manifolds and expect to have to drill all the studs so sort of resigned myself to it taking a while.

Original post Read captured discussion
Exhaust Drop in one go?
Frequently discussed actions (4)

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

Disconnect cables, mounting points etc

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 · Original poster

It's it possible to drop the whole exhaust system on my 2003 C4S in one go from the engine, after disconnecting cables, mounting points etc?

Original post Read captured discussion
Exhaust Drop in one go?

Replace clamps

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

If you're replacing the clamps then just angle grind off the cat/backbox connections.

Original post Read captured discussion
Exhaust Drop in one go?

Replace hanger brackets and plates

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 · Original poster

I was planning to replace the hanger brackets and plates that bolt to them, but may effect a repair if possible.

Original post Read captured discussion
Exhaust Drop in one go?

Replace manifolds and expect

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 · Original poster

I'm going to replace the manifolds and expect to have to drill all the studs so sort of resigned myself to it taking a while.

Original post Read captured discussion
Exhaust Drop in one go?
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.

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

  • 911uk: 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all It's it possible to drop the whole exhaust system on my 2003 C4S in one go from the engine, after disconnecting cables, mounting points etc? I'm looking at replacing the manifolds, hanger brackets, and all other clamps and brackets so thought that if it all came off in one go it might be easier to do if it was on the floor. Also, what's the best anti seize to use so I might have a fighting chance the next time I have to remove anything exhaust related? Thanks Andrew

POST 2Original post

Don't see why not. The manifold bolts are the only potentially awkard ones, and might be easier to work these with other bits out of the way. MC

POST 4Original post

Once you've got the bumper and hear shields off it's probably easier to get the thing off in stages tbh. If you're replacing the clamps then just angle grind off the cat/backbox connections. The manifold/cat bolts bolts will be blobs of rust so will need cutting off anyway. Then you have the fun of removing the manifolds. getting to the top bolts on the backbox hangers is really tough, not done it myself but they're well out of the way. No point removing he exhaust tips though, they're fine to leave on.

POST 5 / ORIGINAL POSTEROriginal post

Thanks all I was just thinking on saving hassle in not having to remove all the clamps and brackets whilst the car was in the air so to speak. I was planning to replace the hanger brackets and plates that bolt to them, but may effect a repair if possible. I'm going to replace the manifolds and expect to have to drill all the studs so sort of resigned myself to it taking a while. Why did Porsche make the bottom mounting point on the hanger brackets in mild steel and not stainless like the rest of the bracket, may it be a chemical reaction with the alloy of the engine to the stainless, can't see why it would be but they have to have had a reason? Andrew

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