fullymatted.
Back to search
Porsche Club GB

rear mufflers

Add to repair workspace
Open repair workspace
Original source
11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHrear mufflers

Leading reported evidence

Install now and car sounds brilliant

Performed · outcome unconfirmed

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 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 · Original poster

All fitted now and car sounds brilliant.

rear mufflers
Read full discussion summary

Leading evidence: 'Install now and car sounds brilliant' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install now and car sounds brilliant' (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.

Read captured replies

1 matching discussions · 11 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Use same mod as mine

Performed · outcome unconfirmed

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 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

I know several people who used the same mod as mine on 3.6's with no problems.

rear mufflers

Replace worn out mufflers

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 would like to be secure in my own mind that simply replacing my worn out mufflers with sports mufflers is going to be ok,

rear mufflers

Use same size tube

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

I used 1" x 16swg tube and mandrel bends as shown in photo 1, but if I was doing it again, I would use the same size tube, but fit it where shown in photo 3, as it issimpler and cheaper.

rear mufflers
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.

Install now and car sounds brilliant

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 · Original poster

All fitted now and car sounds brilliant.

rear mufflers

Replace worn out mufflers

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 would like to be secure in my own mind that simply replacing my worn out mufflers with sports mufflers is going to be ok,

rear mufflers

Use same mod as mine

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

I know several people who used the same mod as mine on 3.6's with no problems.

rear mufflers

Use same size tube

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

I used 1" x 16swg tube and mandrel bends as shown in photo 1, but if I was doing it again, I would use the same size tube, but fit it where shown in photo 3, as it issimpler and cheaper.

rear mufflers
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.

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

  • Porsche Club GB: 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: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Im aware that some silencers are modified, ie stripped down and have bypass lines put in, then re sealed. I think they are referred to as 'sports exhausts' with muffler bypass mods fitted. Does anyone know if this can then be fitted without the need for altering anything. Will it give a power boost or power reduction at low speed etc. I would like to be secure in my own mind that simply replacing my worn out mufflers with sports mufflers is going to be ok, Thanks. ps Is this also something that insurance companies need to know and does it affect premiums.

POST 2Original post

The by-pass sports exhausts aren't stripped down at all. The tube is welded externally. There is no increase in power, just noise. IMO it is the best mod you can do. [ ]

POST 3 / ORIGINAL POSTEROriginal post

Thanks Richard, i think i will double check what im looking at.

POST 4Original post

I've been looking into this and there seems to be a few different ways of doing it depending on engine size. Pics of the different ways i've seen so far: Smaller pipe for 3.4? Larger pipe from corner of box for 3.6?

POST 5 / ORIGINAL POSTEROriginal post

Does it matter if you end up putting a 3.6 design on a 3.4?

POST 6Original post

IMO you should go for photo 1 or 3 - both achieve the same result, and you won't be disappointed. Photos 2 and 4 bypass half the silencer, wheras 1 and 3 have a smaller bypass, but to the whole silencer. I used 1" x 16swg tube and mandrel bends as shown in photo 1, but if I was doing it again, I would use the same size tube, but fit it where shown in photo 3, as it issimpler and cheaper. I know several people who used the same mod as mine on 3.6's with no problems.

POST 8Original post

Also note photo 3 is a 997 box best is as said above photo one, but pipework should be between the inlet and outlet. Just depends how good you are with a plasma cutter / and welding.

POST 9Original post

How loud are they, will it pass a normal trackday noise test. I think they said mine was 98 db anyway so not much more to break the noise limits.

POST 10 / ORIGINAL POSTEROriginal post

Wow, how lucky was i. Bought myself a sports exhaust on ebay for a winning bid of £271. The chap said they were rust free and off the same year car as mine with the same engine size. Drove 140 miles to pick them up and they were fantastic. All fitted now and car sounds brilliant. Wouldnt normally buy an exhaust (muffler) second hand but this time it has certainly paid off. Yippeee!

This is a source reference. Confirm exact model applicability in the original material.