fullymatted.
Back to search
Porsche Club GB

sports exhuast type bypass good or no good

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

Discussion summary

YOUR RESEARCHsports exhuast type bypass good or no good

Leading reported evidence

Check seams of the can

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 would remove one and inspect to check the seams of the can to see if all is good, and if they are in good order then go about it - there's not much point in paying a few hundred pounds to have a pipe welded in when the cans could split etc in a short space of time.

sports exhuast type bypass good or no good
Read full discussion summary

Leading evidence: 'Check seams of the can' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check seams of the can' (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 · 12 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Use hayward and scott

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

Anyone used Hayward and Scott?

sports exhuast type bypass good or no good
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 seams of the can

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 would remove one and inspect to check the seams of the can to see if all is good, and if they are in good order then go about it - there's not much point in paying a few hundred pounds to have a pipe welded in when the cans could split etc in a short space of time.

sports exhuast type bypass good or no good

Use hayward and scott

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

Anyone used Hayward and Scott?

sports exhuast type bypass good or no good
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.

12 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I heard a C4s go past yesterday with sports exhaust (mine does not have this) and it had a lovely burble which I would love to have. I think spending over 3k is out of the question but spending around the £350 mark to have a stainless steel pipe welded on to bypass the silencer from Hayward and Scott seems reasonable. So has anyone had this done to their car and can you advise of pros and cons of having this done. My main concerns would be longevity of the actual exhaust and emmissions.

POST 2Original post

I've considered having this done myself, and most indi's that carry out this work do just that, weld the pipe in and charge best part of £500 for the privilege. I'm sure that this job could perhaps even be done by most custom exhaust places for half that price. I suppose whether it is worth it or not would depend on how much life your silencers have left in them? I would remove one and inspect to check the seams of the can to see if all is good, and if they are in good order then go about it - there's not much point in paying a few hundred pounds to have a pipe welded in when the cans could split etc in a short space of time. I've not been in one with this mod, but I hear good things about it.

POST 3Original post

The "Oettle" type bypass mod is one of the most worthwhile you can make to a 996 with a standard exhaust. It improves the sound no end. Best thing I ever did on my C2 - bar none. The only caveat is that you might struggle to pass noise tests at track days. They used to be £300 on eBay - times have changed, as they now seem to be around £500.

POST 4Original post

its a fabulous sound i did mine myself last week and ever since the radio has been off and the windows have been down you just have to do it

POST 5Original post

Does this bypass the cat then or will the car still pass MOT?

POST 6Original post

There are various bypasses, but the one I mean is a small bypass tube which connects the inlet and outlet pipes on the silencer. It emulates the original PSE, and has no effect on emissions.

POST 8Original post

Type 911 still reasonable price £360 why would anyone pay more than that personally I wouldn't pay that. I would sooner have new muffs for £495. Mine are getting on a bit. http://www.type911shop.co.uk/shop/article_5593/996-RSR-Rear-Box-Conversion.html?shop_param=cid%3D1376%26aid%3D5593%26

POST 9 / ORIGINAL POSTEROriginal post

so all in all a worthwhile (for the sound) and safe mod. Anyone used Hayward and Scott? I called Wrightune but he didnt really seem up for the job.

POST 10Original post

I have heard of a few people who have had it done by H&S, and they have all been very happy with them. They are well set up for exhaust work of all sorts, so can generally do it much quicker than a regular indy.

POST 11Original post

Around the time I was thinking of this I considered Gert Carnewal and his RSR's. I ended up going the PSE route but Have a look on Gert's website and see what you think. http://www.carnewal-europe.com/ HTH B.

POST 12 / ORIGINAL POSTEROriginal post

I think I will go the H&S route and maybe spend more when the silencers actually need replacing which maybe sometime as Ive been told they can last quite a while.

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